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Showing Results for adding mixed number like denominators

Practice using the periodic table to calculate the number of neutrons in the atom of an element.

Number of Neutrons

Never heard of the planet Pirjute? That's because it's Jupiter, with mixed-up letters! Kids unscramble planet names on this third grade science worksheet.

Scrambled Planet Names

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

Make a Balloon Stick to the Wall Like "Magic"

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

Superhero Lightning Bolt

What happens when colored beams of light mix? You might be surprised.

Adding Colors: An Optical Experiment

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

Foam It! Cause a Chemical Reaction

Rainbows look like swipes of brightly colored paint hanging in the sky. Have you ever wondered how they got there?

How is a Rainbow Formed?

How fast does light travel in different mediums? Kids conduct a cool refraction experiment in materials like water and air for this science fair project.

How Fast Does Light Travel in Water vs. Air? Refraction Experiment

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

Liquid Chromatography

Take a look at forensic science with your child. She'll learn how to take a shoe impression, just like the detectives do!

Make Footwear Impressions - CSI Style!

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

How to Make a PVC Pipe Instrument

Explore solids and liquids with your young scientist by making gluep, a goopy substance that can behave like both a solid and a liquid!

Gluep: Solid or Liquid?

Light can do amazing things, but nothing else brings out its crazy capabilities like the prism. Learn about the dazzling prism and make one of your own.

Prism

This list of elements is missing mega-information: a combination of category, name, number, or symbol. Can your fifth grader fix them up?

Master the Periodic Table of Elements #3

Before digital cameras, before Polaroids, there was the original pinhole camera. Build a pinhole camera and see what true vintage photography looks like!

Build a Pinhole Camera

In this worksheet, kids learn about basic physics concepts like mass, momentum, and velocity by applying them to a popular winter sport: slalom skiing!

The Physics of Slalom Skiing

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Ancient Building Techniques

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don&#39;t!

Spinning Science: Disappearing Color!

Boost your second grader's knowledge of space with this fun worksheet, which will have her unscrambling the answers to planetary trivia.

Word Scramble for Kids: Planets

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

Explore Color Science with Grape Juice

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

Have Fun With "Weird" Water

What do you get when you combine science and fairies? Fairy scientists who make their own potion, of course! This activity promotes critical thinking skills as your child mixes, experiments, and creates their very own fairy potions.

Make Your Own Fairy Potion

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

Craft Fizzing Bath Soaps

In this cool sound resonance experiment, learn about frequency and pitch, and use a tuning fork to calculate sound velocity in air.

Sound Resonance: How to Calculate Speed of Sound

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

What is Induction?

This surprisingly good glue recipe comes from common kitchen items.

Make Homemade Glue!

Dr. McSquare is here to help kids learn the scientific method. His reports are all in disarray--can your child sort label each part with the correct step?

Sorting Out the Scientific Method #4

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.

Take the Paper Plate Snack Test!

Teach your child how butter is created by shaking up cream the old-fashioned way.

Make Your Own Butter!

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Growing Jack-o'-Lantern

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