Chemistry is the branch of science that studies the properties of matter and how it interacts with energy.
"Chemistry is considered a physical science and is closely related to physics. ... Scientists who specialize in chemistry are called chemists." - ducksters.com.
What is a mixture in chemistry for kids?
In chemistry, a mixture is defined as "a substance in which two or more substances are mixed but not chemically joined together, meaning that a chemical reaction has not taken place." - science-sparks.com.
For this reason, mixtures can usually be separated into their original constituent parts without changing their original properties.
What are chemical properties for kids?
All chemicals have their own particular properties that dictate how they look and interact with other chemicals.
"The chemical properties of matter are those characteristics that give it the ability (or inability) to undergo a chemical change—a change in composition. The chemical properties of a substance predict whether a chemical reaction will or will not take place." - kids.britannica.com.
Examples of fun chemistry experiments for kids
Here are some great experiments you can conduct in the safety of your own home. Introduce your kids to some basic chemistry principles in a fun and educational way.
1. The timeless bottle rocket experiment
When it comes to teaching kids some basic chemistry you can't beat the 'good old' bottle rocket experiment. This will not only teach them about some basic chemical reactions but will also introduce some elements of engineering too.
For this experiment you will need: -
An empty, clean soda pop bottle
Some paper towel
Some kind of stopper (a cork for example)
A launchpad of some kind
With those materials gathered, the rest is as easy-as-pie. Put about 3/4 to 1 cup of vinegar in the bottle. Place about 1 tablespoon of baking soda in a small piece of paper towel that's small enough to fold up and slip into the bottle with ease.
When you are ready to launch, insert the soda-paper package, put in the stopper and turn the whole rig upside down in the launcher.
Then just step back and wait for the fireworks! Obviously, make sure you do this in a wide-open space, they can go pretty far at times.
2. Baking Soda Dinosaur Eggs!
Who doesn't love an experiment that involves some chemistry with a dinosaur theme? You're children certainly will.
First off, add the coloring to the baking soda - - you might want to put your gloves on for this. Once complete, add some water (about 1/4 cup for every box of baking soda).
Slowly mix it until it becomes a paste. Then take a handful, place a little toy dinosaur in the middle and mold a roughly egg-shaped ball. Keep adding paste until the dinosaur is encased and you are happy with the shape.
Place your eggs on the parchment paper and put them in the freezer for about an hour or overnight.
To hatch, put them in a bowl (line with soap for ease of cleaning later), fill the syringes with vinegar and squirt away!