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Showing Results for practice three digit and regrouping : Page 3

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

Can Crystals Show Color Mixing?

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

Discovering the Best Water for Plants

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Building a Simulated Volcano

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Turtle Habitat

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

How Do Seeds Hitchhike?

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

How Do Weather Conditions Affect How Fast a Puddle Evaporates?

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

Erosion Experiment

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Halloween STEM Building Challenge

Science fair project that examines condensation and the conditions needed in order for dew to form.

Dew Point, Humidity and Weather

Hold a magnet marathon! Explore the power of magnets with your kindergartener in this entertaining and simple science game.

Have a Magnet Marathon!

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

How do Plants Absorb Water?

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Heat Transfer Experiment

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

Low Fat, Low Taste?

This science fair project teaches students about wilting and browning of salad greens.

Why Do Greens Turn Brown?

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?

Sour Taste Testing: When Life Gives You Lemons

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments!  How do you do it? It's not a secret, it's science!

Bubble Science

With Halloween right around the corner, find a way to use your brain and reward your tummy with a new type of science -- candy science!

Candy Science: A Halloween Experiment

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Heating Sugar

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Using Garden Mulch to Make a Bug Zoo

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

How Tall Am I?

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

Candy or Medicine?

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

Geology 101

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.

The Ghost in the Tube

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Design Challenge: Making a Catapult

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

Design Challenge: Gumdrop Towers

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Fat Insulation: How Do Animals Keep Warm?

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

Design Challenge: Building a Bridge

This project determines what category of person is most likely to be ticklish.

Who’s Most Ticklish?

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

Color Changing Milk Experiment

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Why Do Plants Wilt?

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