3rd - 7th Grade Science Activities : Page 18

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

This project compares the strength of one, two, and three-ply toilet paper.

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

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

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

This science project teaches students about organic farming and the benefits and disadvantages of commercial plant food.

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

This science fair project idea studies which kind of rock (sedimentary, igneous, or metamorphic) is most damaged by frozen water.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

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

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

Help your child understand surface tension by showing them how they can create a "skin" on top of water.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

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

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

Show your fifth grade scientist how to create a siphon using two buckets, plastic tubing, and water. Watch her astonishment as the water travels uphill!

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 science experiment has students test whether a snail moves faster on concrete or dirt.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

Recreate the fantastic phenomena of solar eclipses with your child using just a flashlight, a quarter, and her very own face!

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.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.