Science Projects - Christian Parent

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Egg Drop Science Experiment for Kids


If your kids like messy science experiments, then they will love this one. We decided to try this one outside, and I am glad we did! It WAS really fun though.

In this experiment your kids will discover Sir Isaac Newton’s First Law of Motion:

Every object in a state of uniform motion tends to remain in that state of motion unless an external force is applied to it.

Your kids won’t be able to predict how this experiment will turn out until they see it for themselves. For this experiment you will need:

  • Empty toilet paper tube
  • Egg
  • Small tray
  • Drinking glass

You can do this experiment with more eggs/glasses, but have your kids practice first. If you watch our YouTube video, you will see what happened when we didn’t practice with one egg first. It takes some skill!

So first you need to fill a drinking glass half full with water. Place the glass on a table (again, you may want to do this outside because you will be mopping up the floor if something goes wrong).

Next place the small tray on top of the glass. Place the toilet paper tube on top of the tray, centered over the glass. Place the egg on top of the toilet paper tube.

The object of this experiment is to hit the tray out from under the toilet paper tube, dropping the egg into the glass of water. This trick works because according to Newton’s first law of motion, an object at rest stays at rest, and an object in motion stays in motion. When you hit the tray out from under the tube, no force is acting on the egg, so this makes the egg drop straight down instead of flying out sideways like the tray.

You have to see this to believe it. It is very important that the toilet paper tube is completely centered over the glass or the egg will not drop into the glass. You will see in our video what happened when everything wasn’t lined up properly. Even though it took a couple of tries, we did get it to work, and my boys had a great time trying!

Copyright 2014, This article may not be reprinted.

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5 Fun Magnet Experiments for Kids

by Jared Reese

Whether you are homeschooling your children or just looking for some educational science activities to do with your kids, then you will love these fun magnet science experiments. You can find inexpensive magnet kits for all of these projects both in stores and online.

"I Spy" Magnet Experiment

This experiment is fun for preschoolers or any child who is just learning about what magnets are and what they do.

magnet experimentIf you are familiar with "I Spy" books, you know that the child is shown a page of a variety of different objects and then they are asked to identify specific objects on the page.

This activity is similar to "I Spy" in that you will set up a plastic bin full of small "I Spy" type items, like small rubber balls, paper clips, toy cars, washers, small erasers, etc. Make sure that some of the objects are metal and that some are not.

Give your child a large magnet and have them use the magnet to see which items are magnetic and which are not. Help your child record their observations on a piece of paper.

Pipe Cleaner Magnet Bottle

This is a fun activity for children of all ages. For this experiment you will need pipe cleaners of a variety of colors, a plastic bottle such as an empty water or soda bottle, and a large magnet.

Help your child cut the pipe cleaners into pieces approximately one inch long. Place the pipe cleaner pieces into the bottle, filling the bottle approximately half full. Place the lid back on the bottle.

Have your child move the magnet around on the outside of the bottle to move the pieces of pipe cleaner around. Your child will have fun watching the pieces move around and arranging them into different shapes and designs.

Magnets and Water

Fill a glass half full of water and place several small metal objects in the glass.

Give your child a magnet and let them try to get the items out of the glass by placing the magnet on the outside of the glass. Have them try placing the magnet in different positions so that they can see which works best.

Magnet Jumping

Metal items will actually "jump" to make contact with a magnet that is slowly brought closer and closer to the object.

Have your child set out a variety of metal objects such as paper clips and magnetic marbles.

For this activity it works best to use a magnetic wand type magnet.

Line the objects up and have your child slowly bring the magnetic wand closer and closer to the first metal object until it "jumps" toward the magnet. Help your child measure to see how far the object jumped.

Test each of the metal items and see which item jumps the furthest.

Magnetic Painting

This is a really fun science project that can also double as an art project.

For this activity you will need a small shallow plastic tub, water based craft paints, white paper for painting on, magnetic marbles, and a magnet.

Have your child put on an apron because this painting activity can get kind of messy.

Place the piece of paper inside the plastic tub. Place several different colors of paint on the piece of paper.

Set several magnetic marbles in the paint on the paper.

Have your child place the magnet underneath the plastic tub and move the magnet around to move the magnetic marbles around inside the tub. The movement of the marbles will create designs in the paint. You may have to help hold the tub so that the tub does not fall while the child is holding the magnet under it.

These are just a few of many fun science activities you can do with your children to teach them about magnets. Show your children that learning can be fun and enjoy the benefit of spending some quality time with them at the same time.

Jared Reese is a professional blogger that provides information on industrial magnets. He writes for CMS Magnetics, where you can find the best magnets for sale online.

How to Power a Bathtub Boat with Baking Soda and Vinegar


My boys and I have been doing some fun science experiments with baking soda and vinegar. Last week we blew up a balloon with baking soda and vinegar. This is a similar experiment except the baking soda and vinegar reaction fuels a boat for the bathtub instead. This was a really fun experiment. Make sure to check out the YouTube video below and let my boys know what you thought of their project.

  • Water bottle
  • Baking soda
  • Vinegar
  • Paper towel
  • Drinking straw
  • Funnel

First you need to make a hole in the bottom of the water bottle. We used a drill to create a small hole to place the drinking straw in. You could also use a sharp knife or scissors to create the hole.

Cut a length of drinking straw approximately 2 inches long and insert it in the hole in the bottom of the bottle, with the majority of the straw sticking out of the bottom of the bottle.

Secure the straw in place. We used super glue but you could also use masking tape.

Next place about a tablespoonful of baking soda in the center of a small piece of paper towel. Roll up the paper towel so that it will fit in the bottle and set it aside.

Use the funnel to fill the water bottle about half full with white vinegar. Place a finger over the end of the straw so that the vinegar does not pour out the bottom.

Carry the bottle of vinegar and the rolled up paper towel to the bathroom. Have a couple of inches of water in the bathtub ahead of time so that you don’t have to put the bottle down.

Next place the rolled up paper towel inside the bottle and quickly put the lid back on the bottle and place it in the bathtub. Watch your bathtub boat go!

Copyright 2014, This article may not be reprinted.

How to Blow Up a Balloon with Baking Soda and Vinegar


Kids love to do hands-on science experiments. My boys and I are doing different experiments with baking soda and vinegar. This experiment involves blowing up a balloon with the gas resulting from the reaction of the baking soda and vinegar. Kids of all ages will love doing this experiment. We have even included a YouTube video so you can see our experiment in action. To do this project you will need:

  • Water bottle
  • Baking soda
  • Vinegar
  • Balloon
  • Funnel

You can do this experiment with larger two-liter bottles too, but we used a smaller water bottle so that we would not need to use extra baking soda and vinegar.

With the small bottle you will only need about a cup of vinegar. First use the funnel to pour about a cup of white vinegar into the water bottle.

Next place the funnel in the open end of the balloon and slowly pour about 2 teaspoons of baking soda into the balloon.

Place the open end of the balloon over the opening of the water bottle. After the balloon is attached to the bottle, raise up the balloon until the baking soda falls down into the bottle.

As the baking soda reacts with the vinegar, carbon dioxide gas will form, filling the balloon and blowing it up. I love the reaction of my boys in the video when they thought the balloon was going to burst (you will have to watch the video to see what happened!).

This was a really fun experiment and I hope you have fun doing it with your kids too.

Copyright 2014, This article may not be reprinted.

5 Physical Science Experiments for Kids

by Lucy Markham

One of the many wonderful things about homeschooling your children is being able to cater to their individual needs. Unlike public school (especially with the almost-nationwide implement of Common Core in 2010), homeschooling offers the opportunity for a flexible curriculum that allows your children to pursue their own interests.

Growing up, I was never very good at science. I was always more of a grammar enthusiast—I tended to diagram sentences in my spare time. But since I was homeschooled for my middle school years, my parents were able to cultivate an appreciation for science with some hands-on science experiments that interested me in ways the textbooks didn’t.

Here are a few of my favorites!


Materials: Film canister, Alka-Seltzer tablet, baking soda

Find a film canister and fill it halfway with water (feel free to decorate it like a rocket with paper fins, a nose cone, and markers). Then drop ½ of an Alka-Seltzer tablet into it and close the canister quickly. Make sure the lid snaps on securely, or else the gasses powering the rocket will leak out and the experiment will fail.

As soon as the lid is on, step back! The canister will rocket into the air, and you don’t want to be in its way when it does.

Talk About: Pressure

balloon experimentYeast Blowing up a Balloon

Materials: Soda bottle, yeast, sugar, small balloon

Get a small plastic soda bottle and fill it with 1 inch of warm water. Add one packet of yeast and let it activate for several seconds, and then add 1 teaspoon of sugar. Stretch out the balloon (try blowing it up a few times), and then stretch it over the mouth of the bottle.

Put the bottle in a warm place, wait for 20 minutes, and the balloon should start to inflate!

Talk About: Gasses (Carbon Dioxide)

Germ Collection

Materials: A potato, gloves

You can do this same experiment with petri dishes and cotton swabs, but if you don’t have them on hand a potato works too.

Using gloves, cut the potato into pieces. Put one piece of potato into a bag without letting it touch anything (this is the control against which you will compare the other pieces). Take other chunks of potato and rub them on surfaces like a toilet seat, door handle, your bare hands, and outside in the dirt.

Put the potatoes in individual bags and be sure to label them. Put them in a dark place at room temperature, like in a cupboard or on a top shelf in the kitchen. Leave them there for a week, and then pull them out see which ones have the most growth (don’t take them out the bags!). You might be surprised!

Talk About: Microorganisms

Liquid Density

Materials: Vegetable oil, water, food coloring, various small objects

Fill a mason jar or glass measuring cup 1/3 of the way with water and add a few drops of food coloring. Then add the same amount of corn syrup, and another 1/3 cup of vegetable oil. The syrup will layer on the bottom, with the water and then the oil layered on top. All three liquids will stay separated because the syrup is heavier and denser than the water, which is denser than the oil. Put the lid on the jar and shake it up—they will all separate again.

Try dropping objects like grapes, corks, screws, and buttons into the jar. Depending on their density, they will float on any of the three layers of liquid in the jar. Try guessing where they will float before you drop them in.

Talk About: Density

Cleaning Pennies

Materials: Old pennies, vinegar, salt

Combine about a ¼ cup of white vinegar with 1 teaspoon of salt in a small bowl (make sure it’s not metal, or the chemical reaction won’t work as well). Add the old pennies to the mixture and wait for 10 seconds. Take them out and rinse them off…they’ll look brand new!

Add a few more pennies to the bowl, but this time don’t rinse them off. A chemical called malachite will start to build up, turning the pennies a greenish-blue color.

Talk About: Acids

You can find many more fun science experiments for kids if you do a quick Google search—just be careful. Some of them require more adult supervision than others, and you don’t want any emergency dentist (although Hamilton has some good options, if you’re in the area) or doctor visits! But whether you let your kids explore the world of science by themselves or discover it with them, remember to have fun!

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