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Formulate a hypothesis and use the scientific method to determine the guess what is hidden in a box. Test abilities of volunteers, without opening box.

The actual factors affecting friction may surprise you! Learn about the coefficient of friction and put some trigonometry into practice in this science project.

Easy and cool middle school science fair project on ripening process of fruits and measures you can take to prevent fruits from rotting and delay ripening.

Determine which environment keeps an ice cube frozen for the longest duration. Inspect and record your observations when cubes melt.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

Science fair project that tests the effects of temperature change on the reactivity of the catalase enzyme.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.

Check out this cool middle school science fair project idea to determine if shopping carts are really carriers of harmful bacteria.

Science fair project that determines whether mass and weight are the same or different.

Science fair project that determines whether disinfectant sprays or disinfectant soaps are more effective at removing bacteria from hands.

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

Determine how proficient you are at making estimations and learn how to make more reasonable estimates.

Science fair project that examines how yeast grows, and which conditions allow for optimal growth. What types of nutrients does yeast prefer?

Get a cool middle school chemistry project idea on how to determine whether a physical or a chemical change has taken place.

Read on this high school science fair project idea to get basic information on the process of heat transfer and the conditions under which the transfer occurs.

Students will investigate the illumination durations and intensities of different luminous substances of different colors of the spectrum.

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

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Research hemispheric brain dominance in order to determine if you have a dominant side. Test foot, ear dominance. Record observations.

Research what is known about Alzheimer's disease and its treatment, and then prepare a script for television to educate the public.

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

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.

Get a cool and easy science fair project idea which helps high school students in understanding concepts behind the working of a microphone.

Get a cool science fair project idea for middle schoolers on the effect of adding sugar to the growth of green plants.

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

Determine the efficiency of multi-tasking by comparing how long it takes students to complete different tasks. Collate data, complete Summary Chart.

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

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