Measurements are very important for scientists. It is especially important that the measurements be accurate. Think about how important accuracy is when you want to know if you are taller than a friend of yours, every inch counts. In...

Do you like to look up into the night sky? There are so many stars, it can be mind boggling. Some ancient people marked time by the changes in star patterns. We still use changes in constellation patterns to mark astronomical time. This...

Leaves use sunlight to make food for the plant. Sunlight contains all of the colors of the rainbow, but are all of those colors used by the leaf? Can you find out if some colors of light are more important than others?

Propagate potatoes by giving it the right environment for the eyes to sprout.

Do you like to climb trees? The branches of trees are what make them so fun to climb. Each branch starts out as a tiny shoot that grows out from a stem. How is the growth of shoots along a stem regulated?

Sometimes a full moon can be so bright, you can walk around in the dark without a flashlight. How much brighter is a full moon than the other phases of the moon? How is the brightness of the moon measured?

Do you like your strawberry jelly with or without the seeds? Are you glad to have a seed-free watermelon, or do you enjoy spitting the seeds into the garden? You might not like to find seeds in your fruit, but fruit is nature's way of...

Do you wake up at the crack of dawn, or do you need an alarm clock to wake you up each morning? It may surprise you that the two are not always in synch. Nowadays, we use Standard Time to set our watches instead of Solar Time. Which...

No matter what your favorite card game is, we all wish we could use psychic powers to draw the card we want on our turn. You may not have psychic powers, but you might have the power of probability on your side. Do this experiment and...

Animals come in all shapes and sizes, each a small part of the amazing diversity of life. These differences can also help us to classify animals into different groups. Which group do you belong to? Do this experiment to investigate the...

One piece of Play-Doh can make many different shapes. Even though you can change the shape by squishing or stretching the Play-Doh, it is still the same size unless you add or take away some of the dough. Try this experiment to test how...

Juice boxes are so convenient, just poke the straw in and sip away. It might surprise you how much thought goes into the design and manufacturing of a juice box. Each manufacturer has carefully calculated how big each side should be to...

Geometry is the study of how to use math to describe and investigate different points, lines and shapes. The way that a shape is described in geometry is with a formula, which is simply a mathematical way to calculate different...

Riding on a hovercraft is like gliding on a cushion of air. Make your own mini hovercraft in this experiment to test how hovercrafts work.

A tried and true balloon activity is to rub a balloon on your head to make your hair stand up. Learn how the rubbing builds up static electricity using this experiment to see if the number of rubs makes a difference.

Polyester clothing was generally accepted as a popular trend in fashion at one point in history. Now everybody wears cotton, which doesn't get static cling nearly as much. Why are some materials more susceptible to static cling than...

Have you ever had to dig a hole in really hard dirt? It is a lot of work. In this experiment you can make an instrument to test the soil and find out how compacted it is, before you dig.

When you step in mud it can be very messy. How can you tell if soil is wet or dry before you step in it? In this experiment, you can see if color can help you figure it out.

Often, when we think of something that is solid we think about rocks. But in reality, rocks have tiny holes of air inside them. This is called porosity. In this experiment you can find out what it means to be "solid as a rock."

What is it that famous photographers do to make their images so pleasing to the eye? Find out if simple rules of geometry and symmetry can make you a better photographer.

Did you know that the color of your house could save money? Do this experiment to see which colors regulate temperature best in different environments. Learn how painting the house can save money on the energy bill.

While looking at a package of dry yeast it is hard to believe it is alive. But add the right ingredients and presto, the mixture becomes a bubbly, oozing, mess of life. What are the right ingredients? Do this experiment and figure it out...

In this experiment you will find out if boys and girls go to the same places, or if some places tend to have more of one gender over the other.

Some people have a photographic memory and can memorize anything they see almost instantly. Other people can remember almost anything they hear. Try this experiment to see which type of memory you have.