Showing Results for more or less : Page 6

Experiment with the wonders of pressure and condensation by crushing a soda can with nothing but air and water!

Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Determine the effect of homework on academic performance. Collect grade info at the end of a semester, determine correlation between grades, amount of homework

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Your preschooler can learn how to siphon water with just two bottles and a plastic tube in this fun, educational science activity.

Encourage local wildlife to settle down in your backyard with this adorable bird nest craft.

Science fair project that measure winds speed, temperature, and time of day in order to determine the origins of the wind.

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

How powerful is the reaction between baking soda and vinegar? Find out here!

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.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

This free science fair project explores the "dirty" relationship between the presence of organic material in soil and water absorbency.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

This project explores whether music affects the growth and health of plants.

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

This kids' activity is fun to perform and impressive to watch. Plus, it's a great example of Newton's First Law of Motion at work.

Science fair project that examines condensation and the conditions needed in order for dew to form.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!