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Showing Results for three digit and two step word problems : Page 5

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Firework Science

This science fair project idea produces varying pitches of sound.

Changing the Pitch of Sound

This classic children&#39;s game demonstrates how sound travels through air vs. through a solid.

How Sound Travels Through Air and Solids

This science fair project idea demonstrates sonar mapping of the ocean floor.

Understanding Sonar Mapping of the Ocean Floor

When you see those sunscreen "protection levels," what does that really mean?  Try this experiment to find out.

Sunscreen Experiment

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

Testing pH Levels in Everyday Foods and Household Products

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Build a Castle...and Explore First Grade Geometry!

Based on the concept of water's "freezing point," this activity entails the lowering of water's freezing point to chill ice cream!

Make Ice Cream in a Baggie!

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Light and Mirrors

This Mother&#39;s Day, mix in some fifth grade science learning to create this fabulous fudge!

Easy Fudge

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

Spinning Color Wheel

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Foam It! Cause a Chemical Reaction

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Halloween Decorations: Make Ghouly Hands!

In this lesson, your students will explore the properties of solids and learn to describe them in various ways.


A Solid Investigation

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

Slinky Physics

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

Homemade Submarine

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket.  So put on your safety goggles and let her rip.

Film Canister Rocket

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

Make a Water Magnifier!

Learn how matter transmits sound with a simple, hands-on experiment using sand, water and air.

What Does It Matter?

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.

Weight Wonders: Big and Light...Heavy and Small?

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

Light Intensity and Distance

In this activity, young learners will make a balance using a plastic hanger and weigh a variety of small objects using candy corn.

Candy Corn Balance

This awesome diffraction grating experiment puts high school students&#39; applied math skills to the test by having them calculate the wavelength of laser light.

Diffraction Grating Experiment: Wavelength of Laser Light

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

How Different are Sounds from a Phone, a Computer, and a Mouth?

Conduct a simple science experiment to see if flowers from your garden pass the acid-base indicator test with this exciting chemistry activity.

Test for Acids or Bases Using...Flowers!

What do a bicycle and a car have in common? They both move using the simple machine wheel and axle. In this lesson, students learn about how this simple machine works, and will identify objects that use a wheel and axle.

Simple Machines: Wheel and Axle

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

Bungee Jump ... With Eggs!

In this teacher-approved lesson, students will make and play with oobleck (corn starch and water), then write about their experiments. Young scientists will have a blast seeing their oobleck mixtures seemingly come to life.

Ooey Gooey Oobleck

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!

Challenge your child's knowledge of astronomy with this space-themed worksheet, which focuses on the timing of cosmic events.

Earth Rotation

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