Showing Results for comparing-three-digit--old

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Teach your child how butter is created by shaking up cream the old-fashioned way.

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!

The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

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

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

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.

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

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!

Help your child make a beautiful homemade sandcastle that will last!

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.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

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.

Explore aromas with your child and help boost her brain power with some fun and interactive science activities.

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.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

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.