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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?

Add some punch to your own doodles with a quick lesson about how to draw light and shadows.

Drawing Light and Shadow

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 happens when colored beams of light mix? You might be surprised.

Adding Colors: An Optical Experiment

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

Watch Acids and Bases Produce Colors!

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

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Water Purification Experiment: Removing Chlorine From Water

Did you see the announcement in 2016 about new elements added to the periodic table? Put these new periodic elements flashcards in your study toolkit.

New Periodic Elements Flashcards

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

Water and Mosses

Teach kids about a fun way they can remember this more efficiently- the power of mnemonics. Kids will be amazed.

Popular Mnemonics: How Can You Easily Remember Things?

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

The Difference Between Bleached and Unbleached Flour

Here is a nifty science experiment using Epsom salts to make "frost" appear on a piece of glass.

Make Frost on the Window!

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

This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.

Does Liquid Weigh More after Freezing and Boiling?

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Distance and Angle

Practice diagramming atoms and using the periodic table to pull information about atoms with this quiz page.

Atom Diagram

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?

Science fair project which measures the shadow cast by a meter stick at various times in order to predict the circumference of the earth.

Circumference of the Earth in Shadows

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Layering Liquids: Explore Density Science

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

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

Make Marbleized Paper!

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? 

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Examples of Mechanical Weathering

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!

Play a fun game that combines the periodic table with a classic concentration game.

Periodic Table Game

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Grass Turning Yellow: Chlorosis

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