Showing Results for two digit using place value : Page 10

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

This science fair project idea explores whether there is a connection to the color a person wears and the way their emotional state is perceived by others.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

This science project has students study a group of volunteer liars actively lying to study the behavior of a lie. Students see if they can figure out the truth.

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

Science fair project which teaches you how to make your own homemade glue by combing curdled milk with baking soda.

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

This science fair project idea determines if the color of light affects the growth of plants.

This science fair project idea experiments with spinning color wheels and optical illusions.

Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.