Showing Results for mathematics answer key

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Have your child kick off their summer vacation by making a miniature water slide!

In this fun activity, your child will create their very own solar oven to bake s'mores!

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

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

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

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

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

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

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.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

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

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.