Showing Results for answer key

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

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.

First graders are learning basic addition and subtraction math facts. Practice in the sandbox with this fun outdoor math activity!

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Here's a great early reading and science activity for curious children. Learn how to plant your child's name in seeds for a growing writing activity!

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Blend science and math to explore a very important first grade social studies question: does our planet contain more land or more water?

Introduce your child to science with something they see everyday--their shadow!

Help your kindergarten science maven explore the water cycle without getting everything wet.

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

In this project children practice the scientific method while playing with puffy paint.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Put an oatmeal box, a flashlight, and some construction paper together and you have the makings of an incredibly cool bedroom planetarium!

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

Start your toy engines -- this is going to be a fast and friction-filled race!

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

This science fair project idea investigates if fats add to the flavor of food.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

In this insulation experiment, you'll learn which clothes keep you warm in the cold, and which make you shiver.

Word color association is just a fancy way to talk about the way we connect colors with words.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.