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Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

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

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

This science fair project idea investigates if fats add to the flavor of food.

Design a survival kit. Brainstorm various survival scenarios. Address basic human requirements and natural resources. Describe each tool as well uses.

Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.

In this experiment you will replicate the mummification process by making a hot dog mummy.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Science fair project which determines whether a person's taste in music is dictated by the key that the song is written in.

This science fair project idea examines how well individuals can remember a story they were told and how accurately they pass that story along.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

This science fair project idea produces sounds by creating vibrations using different objects.

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

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Make a backbone model to explore human anatomy and life science.

This science fair project idea explores whether color affects a person's emotional state.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.

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.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.