Showing Results for comparing-three-digit--old

This project compares the strength of one, two, and three-ply toilet paper.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Is it a square or a circle? See if you can trick your friends with this zany science project!

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

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

Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

How powerful is the reaction between baking soda and vinegar? Find out here!

This science fair project examines how seeds hitchhike on animals and clothing.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

In this experiment we will be determining whether birds prefer certain colors of seed.

This science fair project idea explores whether talking to a plant will help it grow.

In this activity, your learner will be challenged to create their own tic-tac-toe grid out of building blocks.

This science fair project idea explores how length affects the weight a bridge can hold.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

In this project students experiment with making music using only glasses of water.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.