Chemical Reactions
How can you see a chemical reaction has happened?
Change in color, new light, gas formation, change in state of matter
When is it okay to taste parts of an experiment?
Never
What happens with the rapid expansion of gas and heat
An explosion
What is the first step in the scientific method?
Identifying a problem or question to answer
What teacher is in charge of this enrichment?
Ms. March
How can you feel if a chemical reaction has happened
It releases heat
Why is lab safety important
So nobody gets hurt
What is a substance that can be mixed to make reactions?
Chemical
What is a hypothesis?
An educated guess about what will happen in an experiment
Who are the 2 students who created this enrichment?
Susie and Larkin
What other sense besides seeing or feeling could we use to tell if there is a chemical reaction?
Smell
What type of shoes should you always wear when doing science experiments?
Close-toed
The word for your educated guess at what will happen during an experiment
Hypothesis
After we do the experiment, what must we do with the information?
Create data and analyze it (discuss your findings and what that means)
When we exploded coke and mentos, which was the most explosive soda?
Diet Cola
Heat, pressure, other chemicals
Name 2 types of safety equipment
Safety Goggles, Gloves, Aprons, Lab coats
What is the word for the thing added that causes a reaction?
Catalyst
If your experiment does not show your predicted hypothesis, what can you do next?
1: Make a new hypothesis and try again
OR
2: Report what you found, stating that your hypothesis was wrong
What were the 3 ingredients to elephant toothpaste?
Hydrogen peroxide, soap, and yeast
What is really happening to chemicals when we see an explosive chemical reaction?
There is a change in chemical structure; aka the chemicals are changing to make new chemical compounds
Why can happen if we touch chemicals without permission?
You can get a chemical burn, you can get hurt, etc.
The word for the amount of one substance compared to another substance. It is written as #:#
ratio
Why must we use the scientific method to do a real science experiment?
To make sure the results of an experiment are true.
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