Lazear Science After School Program

How to be a Good Lawyer

2008-05-13T13:19:00.001-07:00

Are there any future lawyers in class?

Break Dance

2008-05-13T13:17:00.001-07:00

Just like what you are learning in Lazear!

Want to become the best?

Practice MORE!!!

Dance and Art

2008-05-13T13:14:00.001-07:00

Try doing this at home!

MUTO a wall-painted animation by BLU

2008-05-13T13:10:00.001-07:00

Some of you wanted to be animators. Well, here is an example of something you can start playing with that will teach you some skills.
You want to become the best?

Keep on practicing!

Another small artist

2008-05-13T13:04:00.001-07:00

You want to be an artist?

Start practicing, there is plenty of options: sculpture, painting, dance, music...

Marla Olmstead: Small artist

2008-05-13T12:58:00.001-07:00

The earlier you start learning what you want to do, the easier it gets to be really good at it.
It could be your first job!

Who studies space?

2008-05-09T13:16:00.001-07:00

The Milky way. Can you find the our Sun?

Future Animals

2008-05-09T13:13:00.001-07:00

Who studies the animals of the future?

Singing Tesla Coil - MIDI Controlled

2008-05-09T12:54:00.001-07:00

Any ideas about how does it work?

Robots!!!

2008-05-09T11:54:00.001-07:00

Remember what is the job of an engineer?

Well, guess who is in charge of building and fixing these robots!

(Engineers fix and build things, for example: robots, bridges, cars, etc. Engineers usually go to school for at least 6 years, but you see, once you find what you like, you will never stop learning about it!!!)

People of the world

2008-04-21T14:25:00.001-07:00

Life After People PART 1

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From:
History Channel

The Miniature Earth

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People and the Earth

Wolf spider feeding

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Ants!

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Shark and Octopus

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Tiger Hunting Deer (bengal and amur)

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Lions Hunt Buffalo

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Origin of Life - Panspermia (1 of 3)

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Origin of Life - Panspermia (2 of 3)

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Origin of Life - Panspermia (3 of 3)

2008-04-04T12:29:00.001-07:00

Aphids: Plant vampires?

2008-04-04T11:31:00.000-07:00

Here are some pictures of aphids, like the ones we saw in the school garden plants.
Aphids are many times plant pests. What is a pest?
Ask in class.

Aphids can have several colors. They can be green, red, black, white, etc. What color are the aphids we saw last time?

Ladybugs eat aphids. They are able to track them down and hunt them. Here is a picture of a ladybug eating one of them.

Homologies

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Rapid Evolution

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More Adaptations

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Remember, an adaptation is any change that brings an advantage.
For example, you can randomly pick a new pair of tires for your bicycle, OR you can adapt it to a mountain environment. Then, what kind of tires would you pick?

Now, let's look at these structures, they look very alike, right? Why is that?
Count how many bones are there?
It is the same number, isn't it? Only the shape and disposition of the bones has changed.
Such changes, despite being random, bring at least one advantage to the animals that carry them.
For example, if you lived in the ocean would you need legs?
Compare the bones of the whale "arm" with those of the rest of animals in this graph.

Although they are organized in a basic and very similar way, they are not identical.

What looks like the best limb if you want to run?
What about flying??

When animal structures look very alike but they are not quite the same, these structures are referred as homologies.

Homologous structures are structures that have a similar origin (they come from very similar processes), but still are not quite the same. Evolution refers to the adaptations in these structures and how they bring certain advantages to the animals that change.

Look how the babies of different animals develop. Do you think they look quite similar during their very early ages?

Now, try to draw these bone structures.

The bat skeleton

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Adaptations

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An adaptation is any change that brings an advantage to the plant or animal.
Remember, changes can be generated randomly (without control), but an adaptation must make things better for the plant or for the animal that is changing.

Check the adaptations of these animals. They live in a desert environment.
What is the environment?
What do you think these animals will need to survive under such extreme conditions?

Creatures from the ocean depths

2008-03-18T14:26:00.001-07:00

Creatures from the Deep

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More creatures from the deep ocean!

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Did you know all these animals existed?

The Deep Ocean

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Some of the many different kinds of animals that live in the oceans.

Starfish

2008-03-18T14:13:00.001-07:00

Human Evolution

2008-03-16T17:56:00.000-07:00

One of the theories about the origin of our species refers to the constant adaptation of our bodies and minds to and ever-changing environments.

For example:
Look carefully the similarities of the human hand with other monkey hands:

Evolution Animation

2008-03-16T17:53:00.001-07:00

Where do humans come from?

2008-03-16T17:47:00.001-07:00

Is it minerals?
The Earth?
This video explains one of the theories about the origins of our human species.

Consumption

2008-02-28T13:38:00.001-08:00

Consumption

2008-02-28T13:30:00.001-08:00

Now we go to the store an buy stuff; for that we need money or a credit card. We need a job if we want to make that money.
Money makes consumption possible and currently drives the economy of the United States.
You buy what you want, but do you need what you buy?

Distribution

2008-02-28T13:10:00.001-08:00

Once products are manufactured at factories, these products must be distributed to the stores where you can find them.
Products move between factories and stores through trains, trucks and ships. Imagine all the gas that is used to move these things around.

From the factories to the ship:

From the ship to the train.

From the train to the truck.

And from the truck to the store.

Have you seen any of these happening around you?

Production

2008-02-28T12:43:00.001-08:00

Robots working on a car. How many people can you see in this video?

Production: Work must me done by people or machines

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To make the stuff we use work must be done by people or machines.

Production: "Made in China"

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An important ingredient when fabricating the stuff we use everyday is work. Work must be done by people or machines.

Map of the world: Where does stuff come from?

2008-02-25T13:23:00.000-08:00

Try to find in this map:
Where was the class VCR made at?
Where were your shoes made at?
Which countries have we been hearing about in class and through our class videos?

Extraction: The consequences of mining

2008-02-25T13:17:00.001-08:00

Minerals like gold, silver, diamonds, oil, aluminium, steel, platinum, etc. come from mines. Extracting these minerals from the mines can be very polluting. Remember pollution means poison.
Mines can contribute with water and air pollution.

Extraction Limitations

2008-02-25T13:15:00.001-08:00

Forests not only provide with wood. They are home to people and many different species of animals, when forests are gone, so are the many different living communities they house.
What kind of animals live in trees?

Monkeys, squirrels, ants, bats, etc, etc, etc.

Trees also provide us with shade and weather stabilization. Trees prevent erosion too.
Erosion is the lost of fertile or productive soil.

Extraction limits deforestation

2008-02-25T13:07:00.000-08:00

How long does a tree take to grow?
How long do we take to cut it down?
What is the problem here?

The living forest

2008-02-25T12:58:00.001-08:00

Remember: Where do plants get their energy from?

Trees

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Reforestation: When trees are gone we lose not only the oxygen they provide us with, but also all other services.
Trees provide us with shadow, weather stabilization, and they are also home for birds, monkeys, bats, ants, etc.

You can volunteer any day of the week planting trees in Oakland with:

Urban Releaf
Oakland Office

Urban Releaf
835 57th Street
Oakland, CA 94608

http://www.urbanreleaf.org/index.html

Extraction: Plastic

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Extraction: Glass comes from sand

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Extraction: Rubber Plant in Thailand

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Extraction: Wood comes from trees

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Extraction: Minerals come from mines

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Sometimes mining means digging huge holes in the ground to access the minerals.

How big do you think this mine is?

The Story of Stuff - Ch.1: Introduction

2008-02-12T12:03:00.003-08:00

The Story of Stuff - Ch.2: Extraction

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The Story of Stuff - Ch.3: Production

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The Story of Stuff - Ch.4: Distribution

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The Story of Stuff - Ch.5: Consumption

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The Story of Stuff - Ch.6: Disposal

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The Story of Stuff - Ch.7: Another Way

2008-02-12T12:01:00.001-08:00

Backwards Hamburger

2008-02-12T12:00:00.001-08:00

Some fast food facts.

Digestion Video

2008-02-08T11:59:00.003-08:00

Digestion: step by step

2008-02-08T11:59:00.001-08:00

Digestion of protein, fats and carbohydrates

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Try to find where every kind of food gets processed within your own body.

Plants grow

2007-12-18T09:44:00.001-08:00

Do you remember where do plants get their energy from?

Growing baby

2007-12-18T09:36:00.001-08:00

Think about how our bodies grow and why choosing healthy food is important.
If you have any question, ask!

The human body

2007-12-18T09:16:00.001-08:00

Try to answer the question. How do we grow?

What are Proteins?

2007-12-18T08:57:00.001-08:00

Can you guess what is this?

2007-12-14T15:48:00.003-08:00

If not. Just ask in class!

Anatomical model of the human body

2007-12-14T15:48:00.001-08:00

Can you find any proteins?

FOOD: Protein

2007-12-14T13:36:00.000-08:00

Protein are the building blocks of our body. We find protein in our bones, and muscles. We find protein in our hair and nails. There is protein in our brain, and also protein is part of our blood.

Proteins are the building blocks of our bodies. Like the bricks in a house, proteins are small compared to the size of our bodies. Nevertheless, as we grow our bodies add more bone and muscle tissue, and remember, what is bone and muscle made of?
What would you eat if you want to grow big, strong and smart?

You can try this recipe from: http://www.morinu.com/pressbox/AboutSoy.html

Southwestern Tofu WrapMakes 4 wraps

1 ripe medium avocado
6 ounces Mori-Nu Silken Tofu, Extra Firm Lite
1/4 cup minced red onion
Four (10-inch) flour tortillas
2 tablespoons lime juice
4 green lettuce leaves
1 canned chipotle in adobo sauce, finely choppped
1/2 teaspoon ground cumin1 medium tomato, diced

Cut the block of tofu in half; place one half in an air-tight container and store in the refrigerator. Place the remaining half on a stack of paper towels to drain the liquid. Set aside.
Slice the avocado in half the long way to reveal a large pit. Remove the pit, scoop out the flesh and place it in a large bowl; add the onion, lime juice, chipotle and cumin. Mix well with a fork until the avocado is mashed and the mixture is well blended. Set aside.
Slice the tofu into 1/4-inch dice cubes. Add the cubed tofu to avocado mixture; combine gently.
Warm the tortillas in a microwave for ~10 seconds or until soft. Top each tortilla with one lettuce leaf, 1/4 of the guacamole mixture, and 1/4 of the tomatoes. Fold the sides of one tortilla up and towards the center. Fold the bottom and top up to cover the filling, to encase the filling completely, making a neat packet. Repeat with the remaining tortillas. Wrap each one tightly in plastic wrap and refrigerate until ready to serve.

Always ask:
Nutritional Analysis Per Wrap:
Calories 230
Carbohydrate 28g
Fat 10g
Fiber 5g
Sat Fat 2.5g
Sugars 2g
Cholesterol 0mg
Protein 8g
Sodium 320mg
Soy Protein 3g

Where else can we find protein?

A hint:

Be careful! Mushrooms can also be poisonous! Always ask!

Nicole's question: How can we know what is in our food and where does our food come from?

2007-12-12T11:55:00.000-08:00

There are several ways. One is to read the Nutrition Facts label that comes with most of our foods.

Another way of knowing what is in our food is to ask the person who grew it how did he or she did it. Of course, this can be very difficult if you get food from a supermarket. But if you visit your local farmers' market you can ask your local farmer directly!

Try at least once!

Farmers' Markets: Old Oakland
Location of Markets: 9th St. in Downtown Oakland
Days/Times: Fri 8am-2pmYear round/Seasonal: Year round, rain or shine
Public Transportation to Market: BART to Old Oakland Farmers' Market AC Transit to Old Oakland Farmers' Market
Phone: 510.745.7100
Email: urbanvillage@earthlink.net
Website: urbanvillageonline.com

Taste the difference.

Hydroelectic Power - How it Works

2007-12-12T11:46:00.001-08:00

When we use water to generate electricity we call it hydroelectric power. Remember hydro=water

How can we get electricity from water?

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Engineers and scientists use water to generate electricity using dams and turbines. Water flows through the dam almost at free fall speed. There are special turbines at the bottom of the dam that will rotate with the flow of the water producing electricity.

Check out some dams in this pictures:

Hoover Dam. Nevada/Arizona border

United Kingdom

Glen Canyon Dam

This is a picture of the turbines:

The largest hydroelectric plant of the world is the Three Gorges Dam in China:

Animals also build dams. Beavers for example build dams to live in:

Here is a picture of a beaver dam:

And this is a beaver:

Where does our food come from?

2007-12-06T17:20:00.000-08:00

Greek dictionary

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GRAPH = to draw (paint)
HYDRO = water
CIDE = kill
HOM = person
PHOTO = light

SYNTHESIS = to build

So, what does PHOTO GRAPH mean?

What about PHOTO SYNTHESIS?

And, HYDRO ELECTRICITY?

Food and energy

2007-12-06T16:56:00.001-08:00

People get energy from their food. But, what happens if you get too many calories and you don't use them?

Remember, the number of calories tells us how much energy is within our foods.
Can you find the number of calories in this food label?

Food and energy 2

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Water contamination

2007-12-06T16:28:00.000-08:00

Remember, water is vital for us only if its clean.

Water can get contaminated very easily. Can you find the sources of contamination here?

If water is not clean, water can become a poison.

Contaminated water kills:

Noe's question: Where does sweat come from?

2007-12-06T16:25:00.001-08:00

When the temperature of our body increases, sweat helps us bringing it down. Can you find the origin of sweat in the picture above?
Our normal temperature is 37 degrees.

Water

2007-12-06T16:17:00.000-08:00

Remember: Water is H2O

How much water is within our bodies?

Our bodies are almost 80% water. Remember: There is water in our bodies as part of blood, saliva, etc, etc, etc, etc. Can you calculate how much water is within YOUR body?
Remember, it is around 75%

Food Pyramid

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Vegetarian

Non-Vegetarian

Energy: The sun

2007-12-03T13:19:00.000-08:00

Our food (3)

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Energy comes from our food. And different foods have different quantities of energy. For example,
Compare broccoli and meat:

Energy that we get from our food, is consumed when we do any work. Remember: Energy is the capacity to do any work.
How many calories are we eating?

Look for the Nutrition Facts in your food. Are we getting enough minerals?

Our Food 2

2007-11-29T13:08:00.000-08:00

An overview of how dietary fat gets digested, packaged, and sent to various tissues for storage or energy.

Energy and Ecosystems (Natural Environments)

2007-11-29T13:02:00.000-08:00

Photosynthesis: energy from the sun is captured by plants and used to make food. Most of this energy is used to carry on the plant's life activities, the rest of the energy is passed on as food to the next level of the food chain.

Energy flows in a simple food chain. At each level of the food chain, about 90% of the energy is lost in the form of heat. Therefore, as you move up the food chain, there is less energy available.

NOTE!! Each organism in the food chain is only transfering one-tenth of its energy to the next organism.

Energy and Ecosystems (human impacts)

2007-11-29T12:55:00.000-08:00

People can impact their environment in negative ways. For example, water contamination pollutes otherwise clean water. As a consequence we can no longer use that water to grow our food or to drink. Contaminated water becoimes a poison.

This film is based on the the brief to develop sustainable housing for urban megalopolis in China in 2020.

Our food (Food labels)

2007-11-29T12:52:00.000-08:00

Food Labels Tell the Story!

From the Label to the Table!

What is in food?

Food provides your body with all of the materials it needs to grow, and to be healthy and active. These are some of the building blocks in food.

CARBOHYDRATES are the body's main source of fuel. Starchy foods like breads, spaghetti, rice, potatoes, corn and cereals are made up mostly of carbohydrates. Sugary foods like candy, jam and syrups also are carbohydrates. Some carbohydrates, called fiber or roughage, are hard to digest. They help move waste through the digestive system.

FATS include butter, margarine, lard, shortening, and cooking oil. Cheese, cream, chocolate, some meats and many desserts have a lot of fat. Fats are very concentrated sources of energy, so only a little is needed.

PROTEINS, are important for growth and repair of the body. Protein-rich foods include eggs, milk products, meat, dried beans, chicken, turkey, and fish. The body also can use protein as fuel for movement and growth.

MINERALS are found in small amounts in foods. They are needed for many of the body's functions. For example, calcium is used to build bones and teeth, and also is important for muscles and the nervous system. Iron becomes part of red blood cells.

VITAMINS are other chemicals found naturally in food. They are needed in very small amounts by the body.

Did you know that WATER also is a major part of almost all food?

Nutrition Facts -- the Labels on Food Products

Beginning in 1994, the US government began requiring manufacturers to put information about nutritional value on food labels. You can use this information to make better choices about what you eat -- watch for the following information:

Pay close attention to serving sizes.
Products labeled "light" or "lite" must have 1/3 fewer calories or 1/2 the fat of the foods to which they are compared. "Light" also can mean that salt has been reduced by 1/2.
Look for foods with lower levels of saturated fats.
The sodium level tells you how much salt is in food.
Look for Products that have more fiber and less sugar.
Vitamins and minerals help your body function properly.
Calcium is important for bones and teeth.
Use the "percentage of daily values" section of the label as a guide for daily planning.
The amount of calories a person needs each day depends on many factors, including exercise.

From: http://kids.niehs.nih.gov/baylor/food3.htm

Photosynthesis

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Food web

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The Energy Chain

Did you know that bears climb trees because of the sun?

	Energy from the sun creates wind and rain. The wind helps scatter seeds for new plant and tree growth. Rain provides needed water.
	Trees and plants grow because they take energy from the sun and convert it to CHEMICAL ENERGY through a process called PHOTOSYNTHESIS. The chemical energy is stored in the plant as potential energy.
	When a bear eats a plant, the stored energy from the plant is converted to muscle energy...
	...and the bear can climb a tree! So the sun allows the tree to grow and gives the bear the energy to climb it!

Water cycle

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Click here for more on "The Hydro Logic Cycle"