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Showing Results for "add and subtract"

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Does Adding Salt to Pasta make it Cook Faster?

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

Low Fat, Low Taste?

Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.

Why is There a Leap Year?

Learning to add single-digit numbers is a highlight of the kindergarten math curriculum. You can support addition fluency with this guided lesson that takes kindergarteners through an understanding of values. Kids will learn with focused instruction and practice that by putting numbers together, they get a new number. When the lesson is over, kids can continue practicing addition with our accompanying worksheets.

Typing Home Row 1

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

The Chemistry of Dyeing Easter Eggs

This science fair project idea examines whether adding gelatin causes a solid  to have a higher melting point and/or melt slower.

Does Gelatin Slow Down the Melting of Freezer Pops? 

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

A Glass Symphony

Learn a bit about meteors, asteroids and comets as they travel across the night sky. Can your child round out the page by adding color to these orbiting rocks?

Asteroids and Comets

This science fair project will help students learn about non-vascular plants, such as mosses.

Water and Mosses

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

The Difference Between Bleached and Unbleached Flour

Making your own glass cleaner is easy, effective and inexpensive!

Make Your Own Glass Cleaner

In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.

How to Make a Bouncy Ball

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

Using Mirrors in the Garden: Measuring Light Reflection

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Volcano Project

Get lost with a dizzying maze that challenges you to help the lightning bolt reach the ground!

Electric Rod Maze

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

Layers of the Earth Project

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

Chemical Indicators

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Does Ultraviolet (UV) Light Pass through Some Colors More than Others?

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Making Fake Snot!

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Candy Science Experiments: Toffee!

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Sweet Tooth

Learn all about balance and motion as your child designs a corn maze!

Corn Maze STEM Challenge

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Can Jell-O be Made With Just Warm Water Instead of Boiling Hot and Then Cold? 

Children learn about the food cycle in a rain forest as they color in a scene of snakes, butterflies, leopards, and other forest-dwelling creatures.

Rain Forest Food Web

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Flat Earth? Not Really!

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Exploring Erosion, Sediments and Jetties

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Pinto Bean Germination Experiment

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Make a Fistful of Slime!

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Can Your Own Spaghetti Sauce

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

Make Your Own Soap

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