In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Encourage your fourth grader to develop their critical thinking and critical writing skills with this Critics' Choice movie booklet for your family.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

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

Chlorine and chloramine are added to our tap water to kill harmful microorganisms. What is the best way to filter these disinfectants in your drinking water?

Practice third and fourth grade measurement skills and make a practical holiday gift in the process!

Science fair project which determines whether people are more likely to follow rules if they are easy to understand.

Perform a special St. Patrick's Day magic trick with this fun craft project! 

What is condensation? Little mad scientists will learn about condensation, states of matter, and air pressure by conducting this cool science experiment.

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

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

To practice place value, here's a fun hands-on activity to get your child flipping through place value with ease!

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Science fair project in which you will start a fire from scratch without using matches or a lighter.

In this activity, your child will learn how to make a drop spindle with a handy vegetable.

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Use Martin Luther King, Jr's historical "I Have a Dream Speech" to inspire your child to write down her own dreams.

In this activity your child will create their very own marble maze!

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.

In this activity, learners will discover how to make a basic water filtration system using common materials found around the house or outside.

In this activity, your child will use two powerful questions to investigate a thought and the truth behind it. They will write and perform a skit using mindfulness and these important questions.

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

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

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.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.