Showing Results for two digit using place value : Page 13

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.

Planning a beach vacation? Here's a cool nature craft you can make in the sand with your child.

Help your child build her very own science laboratory at home for experiments and science projects. This is a quick, easy, and fun educational tool!

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

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

Help your kindergarten scientist predict and observe as she explores the science of smell...and have a great time doing it, too.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

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.

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his 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.

Will the shape of an ice cube impact how fast the ice melts?

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Combine the science of physics with the fun of playing spy. Your young detective can make his own tiny looking glass. It's simple to make!

This science fair project idea investigates the hardness property of minerals.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

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.

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.

Construct batteries that make electricity from fruits with this fun science fair project.

How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!