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

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Test your friends to find out if you can replicate the placebo effect's incredible results.

In this fun experiment, learn about brand awareness and the influence of media on children by testing logo recognition in different age groups.

This science fair project idea determines the probability of a coin landing heads or tails.

This science fair project idea studies which brand of wintergreen candy produces the most sparks in the dark.

Do you think heat can affect a plant's growth rate?

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

This fun science fair project idea helps students learn how acid rains are formed and explore how acid rain damages the environment.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

This science fair project idea explores whether people have an innate feel for the passing of time from a few seconds to 20 minutes.

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.

Find out whether matte or shiny nail polish lasts longer.

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 light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

This science fair project idea determines what household items are good conductors of electricity.

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

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

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

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

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.