Matter is anything that takes up space in the universe. Everything is made of atoms, which are tiny packets of material. Matter comes in three states: solids, liquids, and gases.
What are Chemical Changes?
Chemical changes are changes in the molecular structure of a substance. Usually in a Chemical Change, a new substance is formed. There are a few indicators that tell you that a chemical change has happened:
- Gas is produced (bubbles seen)
- Light is produced
- Change in color
- Change is temperature
- Precipitate formed (leftover substance)
Look for these pointers when you are deciding if a chemical change has happened. There is actually a way to remember if a Chemical Change has occurred. The hint is when you cook something, it is ALWAYS a Chemical Change.
Examples of Chemical Changes
Some examples of Chemical Changes are toasting bread, mixing baking soda and vinegar, fireworks exploding, and burning paper. These all are Chemical Changes.
Directions: First, pour the baking soda into the cup/bowl. Then, use a funnel to pour the vinegar in with the baking soda. Observe what happened. Ask yourself “Is this a chemical or physical change?”
Also, send us a picture of your experiment! Include a caption that tells us what you have observed! Go to spectacularsci.com/contact to find our email address.