Showing Results for two digit using place value : Page 7

Popsicles aren't just for the summertime, this activity takes cold and turns it into a creative and tasty science experiment.

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

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

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

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

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

What is it about a Slinky that causes it to walk down the steps? This simple experiment is a perfect illustration of both gravity and momentum.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

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

This science fair project idea explores whether white light can be separated into different colors.

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

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

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

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.

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!

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

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

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

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

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Celebrate autumn with a seasonal bash. Welcome the fall with a festive party for your little one and her friends, full of crafts, snacks and fun games.

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.

Here's a fun activity that will introduce your fourth grader to the concept of frictionless motion by constructing a hovercraft.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.