4th Grade Science Projects Resources : Page 9

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

In this experiment we will be determining whether birds prefer certain colors of seed.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

This science project challenges students to learn about and classify weeds and discover new practical uses for weeds.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

This science fair project examines how seeds hitchhike on animals and clothing.

In this experiment, students find out what happens when a less-dense fluid interacts with a denser one, replicating the effect of cooler solid rock on magma.

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Does dough rise faster with unbleached or bleached flour? Investigate in this science fair project idea.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

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

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Could there be toxic chemicals lurking in the cupboards and closets of your home?

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?