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3rd - 7th Grade Science Activities : Page 12

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Sinking Objects

The goal of this science fair project is to demonstrate different ways to generate static electricity and record its effects.

Static Electricity Project

This science fair project idea explores which fruit molds the fastest.

Which Fruit Molds the Fastest? 

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Falling Objects Revisited

Wind is an important source of renewable, green energy. The purpose of this science fair project is to build and operate a windmill generator.

The Answer is Blowing in the Wind

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

Make a Backbone Model

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.

Microscopic Life is Everywhere

The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.

Fresh Food vs. Frozen Food

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Heat Conduction

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Building Brick Challenge: Find the Perfect Fit

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Test Kitchen: Spoons

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Layering Liquids: Explore Density Science

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.

Gender Probability: Male and Female Chromosomes

Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.

Sound Physics: The Difference Between Sound and Noise

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

Preservatives in Food

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

Pumpkin Investigation

Who knew that you could make beads out of rose petals? Not only can it be done, but the beads smell wonderful!

Make Rose Petal Beads

Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.

Helium Rising

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Build a Popsicle Stick Bridge

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Magnetic Levitation

Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.

Coriolis Effect and Hurricanes

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Upside-Down Plants

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

The Role of Fat in Food

The objective of this science fair project is to test the growth rate of a plan in a crystal medium in comparison to traditional soil.

Exploring the Rate of Plant Growth in Crystals vs. Soil

The purpose of this science fair project is to build a basic radio.

Radio Waves, It's In The Air: Build A Basic Radio

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.

Do Plants Experience Pollution? Will Plants Grow More or Less or be Unaffected when Grown in Polluted Soil?

In this cool experiment, learn how to find specific gravity of minerals using liquids of different densities to see which substances and items sink and float.

How to Find Specific Gravity of Minerals

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Make Your Own Marshmallows

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

How Does Salinity and Temperature Affect the Density of Water?

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Goldfish Behavior

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