Showing Results for three digit and two step word problems : Page 25

Discover which fabrics shrink the most in the wash and why.

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

This science fair project idea will be examining oxidation and acid rain

Which sunscreen is most effective at blocking the sun's harmful UV rays? Test the SPF of various sunblock brands in this cool science project!

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

The objective of this science fair project is to determine whether planaria reproduce asexually by regeneration.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

The objective of this science fair project idea is to explore which brands of "anti-fade" shampoos work the best to keep hair color looking fresh.

Kids love the dramatic Mentos and Diet Coke experiment conducted in this awesome science fair project.

This science fair project idea determines effective strategies to help students stay awake and attentive.

Science fair project that demonstrates the process known as refraction, which allows glasses and contact lenses to help people with poor vision.

Science fair project that explore how compound motion works by examining how gravity is affected by horizontal force.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

There is debate about whether chalkboards or whiteboards are better. This experiment explores which leads to better retention of visually-displayed information.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

This science fair project idea discovers the effect of (high) heat on animal cells.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

Determine whether the application of Febreeze will lower the bacterial count.

Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.

Check out this fun middle school science fair project idea on Newton's third law of motion and how you can change the speed of a rocket.

Get a fun high school physics science fair project idea one of the states of matter called plasma and the applications of this unique coil.

Science fair project that demonstrates the different phases of the moon by physically representing them with construction paper and a shoebox

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Test out various brands of permanent markers to see which one is least water soluble.

This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

This experiment evaluates whether a person's eye color affects their ability to identify colors in low light.

Science fair project which determines whether your current calorie intake will cause you to lose or gain weight over time.

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.