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

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Determine how good we are at direct and indirect observation.

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.

Science fair project that explores the phenomenon of Non-Newtonian fluids by exerting force on different materials.

This science fair project idea provides evidence that air is everywhere and takes up space.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Science fair project that illustrates the properties of black holes in space.

Science fair project that determines the relationship between the temperature and the rate of cricket chirping. How many times do crickets chirp each minute?

Science fair project that determines whether wireless networks damage living plants. Are WiFi radiation hazardous to your health?

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Science fair project that examines the relationship between the size of a bubble and how quickly it falls. What is the correlation?

In this science fair project, students will learn how to calculate the formula for the thermal decomposition of potassium chlorate.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?

Science fair project which examines the relationship between frequency of spider web vibration and spider's response time.

Science fair project the demonstrates Newton's Third Law using a milk carton filled with water.

Cinnamon is tasty, but does it have super powers as well? Find out if cinnamon can repel mosquitoes in this outdoorsy experiment.

In this science fair project, students create their own miniature salt flats at home.

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

Create a colorful, informative display that illustrates the properties of blood cells. Prepare slides using samples of fresh raw beef or chicken bone marrow.

Science fair project which examines how stopping a tomato's ripening process using the enzyme ethylene effects the tomato plant and its reproduction cycle.

Science fair project that tests the correlation between outdoor temperature or weather conditions and the number of visible stars at night.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

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

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.