Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

What is a series circuit and how does it work? Learn about voltage, electrical current, and resistors in this cool science experiment!

Young physicists learn about apparent weightlessnessâthat weird sensation you sometimes feel in elevators, turbulent airplanes, and roller coasters.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Dig into the physics of pool to explore some cool applied math and learn about what happens in an elastic collision of equal masses.

Learn about how sugar fermentation and growing yeast in this easy science project! Yeast is a eukaryotic microbe that puts the fun in fungus!

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

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

Do you have your isopods straight? Learn about sow bug and pill bug behavior by building a terrarium to study them in!

This project examines germs and their spread in households. The goal is to learn how to stop the spread of germs and other diseases.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Check out this fun science project idea to explore different types of starches and learn how removing starch affects the quality and taste of food.

Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

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

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

In this fun science experiment, make a balloon car and test it on different surfaces to learn about sliding friction and rolling friction.

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.