4th Grade Science Activities : Page 2

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.

This project examines whether people's taste perception is influenced by what they see.

This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

How do you tell time without a watch? Use the sun! This simple activity will show your child how to build his own sundial.

Take advantage of the spring and summer sun in this arts and crafts activity that has your learner creating pretty flower prints.

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

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.

In this design challenge, your child will create a parachute for a small toy using typical household items.

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

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

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.

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

Help your child plant a "tea garden": a garden made of herbs for making teas.

In this science fair project, students make their own rain gauge to measure rainfall.

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

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

Challenge your learner to design and build a city of their own in this creative engineering activity.

Science fair project examining barometric pressure, and how it can be used to predict the weather. How does atmospheric pressures relate to weather conditions?

Show your child how to construct a homemade thermometer. It's hands-on fun and a great way to learn about this important instrument!

This project examines if computer screen and text color affect retention and if people subconsciously prefer combinations of colors that help their retention.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.