Showing Results for compare with same denominators 2 : Page 40

Kids are sure to be entranced by the magic of the ocean when they create their very own ocean in a bottle.

Store bowls of fresh fruit in differently lighted environments. Contrast freshness based on appearance.

Measure the porosity of rocks by submerging them in water. Measure how much water each rock "drank," by measuring the difference in water volume.

Determine the growth rates of different types of human hair. Ask volunteers to not cut their hair until the end of experiment. Measure hair length.

Design and build a balloon rocket from an existing design. Think of the ways in which existing designs can be improved, new practical applications

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

Explore the belief in astrology as a predictive system.

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

Science fair project that uses distillation to convert salt water into fresh water.

It's food. It's Thanksgiving tradition. And guess what: Cranberry Sauce is also science! Try our simple recipe/experiment.

This science fair project idea tests whether it is true that humans are in the morning than later during the day/night.

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

In this microwave plant experiment, find out whether microwave radiation will affect radish seed germination. Will it help or hinder the plants' growth?

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

In this activity, your child will be asked to create a boat that can successfully float while holding 25 pennies.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

This science fair project idea determines exactly how much of an effect road grade has upon a cyclistâs speed.

Measure the effectiveness of detergent containing a UV-absorbing compound in blocking UV-A radiation. Use black light and UV detecting beads.

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Set off an a science adventure as you prepare a row of bee homes for your new visitors.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Free science fair project idea that examines cheating in school-age children. Project involves a task in which children are tested on various tasks.

This science fair project idea explores what common compounds can be easily separated out in a centrifuge.

Explore the concept of receptive fields and why different parts of our body have different levels of sensitivity.

The purpose of this science fair project is to build a basic radio.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.