This Week's Video

How much science can you learn with a globe?

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Key Concepts: inertia

How can a glass vase reverse the movement of a flame?

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Key Concepts: inertia

How can a glass vase reverse the movement of a flame?

What does the word "radioactive" really mean?

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Key Concepts: atoms, radiation

Construct a simple device to let you detect atomic particles.

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Key Concepts: combustion, energy

What basic things do you need for a fire?

Learn some of the science of tricking your brain.

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Key Concepts: shapes and surfaces

Can an empty space have only one side?

Use science to make a coin seem to magically rise from a matchbox.

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Key Concepts: light, spectrum

Use your cell phone to see a color you can't see

Learn the science behind this classic demonstrationl

Learn some tricks with dry ice as you explore the science of sublimation.

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Key Concepts: states of matter, solutions

Who would think that there could be so much science in a pot of boiling water?

A hole in a boat can cause it to sink, so what if you have a boat made entirely of holes?

Trick your brain into seeing two different shades of grey, even though you KNOW they are both the same.

Try making your own craters, and then compare them with photos of the real thing.

Altering the speed of light to see around a corner.

It is amazing how much science is involved in the simple act of blowing out a candle.

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Key Concepts: gases, density

A fun way to explore density.

A simple challenge to let you explore pressure and moving air.

A classic chemistry demo that is fun and easy to do.

Mix two clear liquids to produce a white liquid. Then mix it with the black liquid from part 1, to get another clear liquid.

Mix two clear liquids to produce a black liquid.

How do they get the colors in fireworks?

What sort of strange creatures would you hunt with an umbrella?

Which curved piece of paper is really longer?

Can you mix salt and pepper and then separate them again? Of course you can!

How can a liquid mixed with a gas seem like a solid?

How can you hang a spoon on your nose?

Using spoons and string to hear sound in a different way.

The answer to the fun science puzzle.

A fun science puzzle.

The most complex skin covering of any vertebrate.

Instant science: An illusion to make two coins look like three.

How can birds sit on power lines without getting shocked?

Explore a chemical process that keeps your cells going.

Key Concepts: human body, brain

Can you resist scratching your nose?

Construct a simple circuit and use it to test conductors and insulators.

Key Concepts: electricity, diode, resistor, circuit

Using LEDs as a way to get started learning about electricity.

Construct a simple device for detecting static charges.

Key Concepts: light, refraction, reflection, energy

A look at one of the world's largest solar power plants.

If bubbles are clear, then why are soap suds white?

Key Concepts: chemistry, polar and nonpolar

The answer to the challenge. Did you get it right?

Key Concepts: chemistry, polar and nonpolar

We start by putting wood and wax into water, and watching them separate. The challenge is to get them to change places.

How good is your brain at working with two bits of information at the same time?

Because it is so common, we forget how chemically bizarre water is.

What do they put into breakfast cereal to give you your daily requirement of iron?

How good are you at moving across the midline?

Why do cola drinks contain caramel color?

Make this simple, science toy to learn about sound, while making sounds to annoy,..I mean amuse
 your family.

Take a marshmallow apart to see what it is made up of.

Learn some of how your brain stabilizes images.

Why does bread go stale so much faster than cake?

An introduction to induction.

Learn about surface tension on water while playing a fun trick on your friends.

What is it about water that keeps things from burning?

What is the hottest part of a flame? It may not be where you think it is.

What if things go WRONG?!?!.

This time we talk about controlling variables.

This time we talk about research and forming a hypothesis.

Its time to start thinking about your Science Fair Project, but don't panic. Take a minute and set some goals.

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Key Concepts: solutions, boiling point

How can hot water form such beautiful quartz crystals? It takes a lot of pressure!

Can you tell which pen was used to write a message? Of course you can, if you know the science of chromatography.

Have you ever taken a photo that turned out very yellow or with a blue tint? Now you will know why..

A fun but smelly test to find tannins in your food.

Make this fun, science toy, and learn more about how things balance.

Can you tell the difference between a raw egg and a boiled egg, without breaking the shell? Of course you can, if you know the science.

Understanding center of gravity and base can make it easier to balance.

Use chocolate and your microwave oven to measure the speed of light.

Combine science and chocolate to learn how a microwave oven works.

How many cotton balls can you fit into a full glass of water?.

Try this natural, optical illusion, which tricks your eyes and brain with motion instead of color.

Even in the desert, you can make a cold, tasty snack with some common items and a little science.

How fast are you moving right now? Probably faster than you think!

Try this classic science experiment, and see why it does not show what many people think it does.

Have you ever wondered how photographs work? With this simple experiment, we will find out.

Like magic tricks? Here is a fun one where the science does the work.

Learn the science of rainbows, and you will know exactly where to look to see them.

Without a heart to pump the fluids, how can plants get water from their roots all the way up to their leaves?

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Key Concepts: Chemistry

What can you do with a jar of spoiled cream? Make Butter!

Trick your eyes and brain into seeing color in a black and white photo.

Learn about surface tension while blowing bubbles in your milk.

Try this experiment to see what adding extra oxygen to a fire can do.

Practice your observational skills while watching wildlife.

This experiment is one of the classics that is still a lot of fun to play with. It has to do with density.

Why do fireworks make so much noise?

Can you lift an ice cube out of a bowl of water with a piece of string? Of course you can, if you know a little science, and have a little salt.

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Key Concepts: Air, Density

Have you ever heard someone say that something was "as light as air"? Exactly how light is air? Probably a lot heavier than you think. Try this fun, easy way to calculate the weight of the air in your room.

Many people know that you can use thunder to tell how far away the lightning is, but they often get confused as to how to do it.

You've seen optical illusions, but have you ever tried a "nose illusion"?

This fun activity will let you learn about sound while making all sorts of strange sounds.

Can you balance a hammer, a ruler and some string on the edge of a table? Of course you can!

Try this simple experiment to see how the pull of gravity varies on the planets in our Solar System.

Did you know that your foot is the same size as your head?

The answer to the previous video. Did you get it right?

Find out why changing the water level in a bottle changes the sounds that it can make.

Why wet food cooks better than dry food in a microwave oven.

Have you ever wondered why some flames are yellow, while others are blue?

Finally, the solution to video #43!

If you place a tall candle and a short candle under a glass jar, which will run out of oxygen first?

How can you pour a glass of soda without getting a glass that is half soda and half foam?

Try this strange trick to see how your brain communicates with your body.

Test your reaction time.

Why does a helium balloon act strange in a car?

Why does the sound of a car change as it passes you?

Learn how to make quick, easy, emergency eyeglasses.

Can you really hear the ocean in a seashell?

You can even learn about science when you're eating pizza.

Learn how to make all sorts of unusual sounds with a blade of grass.

How many ways can you think of to keep water in a glass when it is turned upside down.

Have fun and make a mess while learning about science with half a water balloon.

How can you put sugar on your tongue and not taste anything sweet?

Why does heat and hard work make you perspire?

Try this fun challenge next time you are waiting in a restaurant.

Use a drop of water to see the true colors on your television.

Well, the team is swamped, finishing our new Electricity DVD, so I thought I would give you a sneak preview of what we are working on.

Learn about being a paleontologist and eat cookies at the same time.

Use inertia to challenge your friends and win every time.

Find out how burning metal produces the sparks in fireworks.

Is it true that you can identify a diamond by cutting glass? 

Produce beautiful smoke rings from a soda bottle. 

Can you make flames shoot out of an orange? Of course you can! 

This week we will are going to build a bridge.  

Use the science of topology in a challenge that will frustrate your friends.  

Use a balloon to attract a stream of waterr.  

Use a common spice to make a pH indicator.  

Make your own fingerprint dust, and collect your fingerprints from a glass.  

Use air pressure to control the flow of water.  

Use the science of chemistry to change the color of flowers. 

Explore some of the ways that plants spread their seeds.

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Key Concepts: Surfaces and Spaces

Start with a standard 3X5 index card, and cut a hole in it that is large enough to fit your body through.

Why does adding clear water to white paper make it look darker?  

If you were lost in the woods, would you be able to determine which way was north?

This classic experiment is a fun way to explore why things float or sink.  

Try this dramatic experiment to add some science fun to your next birthday party.  

Use the science of Topology to make an object with only one side and only one edge.  

Use steam and air pressure to crush a can in a fraction of a second.  

Use science to tell the number of sections in an orange before you slice it.  

Can you hold a balloon in a candle flame without popping it? You can if you know the science!  

Transfer energy to get a tennis ball to bounce higher than a house. Be sure to do this high energy experiment outside!