ACIDS & BASES
True or False: Lemons are basic.
False, lemons are acids.
What are the three states of matter?
Solids, liquids, and gases.
What is chemistry?
A branch of science that studies what everything is made of and it's chemical components.
What is a hypothesis?
An educated guess about a question
What does STEM stand for?
Science, technology, engineering, and mathematics.
What is an acid?
An acid is a chemical substance with a pH of less than 7. Examples include lemons, carbonic acid (the bubbles in soda), and vinegar.
False, Solids are hard and take their own shape.
What is one experiment we did this week that showed a chemical reaction?
Elephant toothpaste and Bath bombs.
What is the first step of the scientific method?
The first step of the scientific method is to ask a question.
What is the mission statement of Girls Inc.?
Inspiring all girls to be strong, smart, and bold.
What is a base?
A base is anything with a pH greater than 7. Examples include cleaning supplies, soap, and toothpaste.
How did we create gas in the lava lamp experiment?
The alka-seltzer tablet released small bubbles of carbon dioxide gas.
What is a chemical reaction?
When two chemical substances come together to create a new substance.
What do you use to protect your eyes from harmful chemicals?
Safety glasses/goggles.
True or False: Girls Inc. serves girls in Fort Worth only.
False: Girls Inc. of Tarrant County serves girls in Arlington, Fort Worth, Crowley, Denton, and more. There are more Girls Inc.'s all over the United States.
What acid did you use when creating bath bombs?
Citric Acid was used to create bath bombs.
True or False: H20 can be a solid, liquid, and a gas.
True.
Name 2 things you might observe if a chemical reaction is taking place?
Bubbles, temperature change, color change, and an odor change all indicate that a chemical reaction has taken place.
What should you do before and after every chemical experiment?
Wash your hands.
Who is the director of all STEM Programs?
Rebecca Rueda.
False, water has a pH of 7 which is neutral. It is not an acid or a base.
What state of matter are bath bombs? (Hint: They may be a different state of matter before and after their use
Before bath bombs are placed in water they are solid. After the chemical reaction occurs they are liquid.
What type of gas do acid-base reactions create?
Acid-base reactions create carbon dioxide.
What are the six steps of the scientific method?
1. Ask a question.
2. Research your question.
3. Form a hypothesis.
4. Test your hypothesis.
5. Analyze your data.
6. Draw conclusions.
Where are the two Girls Inc. offices located?
Arlington