1. Warm Ups 2015

2. Layout of Your Warm ups Number Each Warm Up
Include the problem and the answer
Show all work for math problems
Layout of Your Warm ups

3. 1 If you have been heating glassware, how should you pick it up?
What do you do if there is an accident in the lab?
Long hair should always be ___________ ________ in the laboratory.
Never leave a lit Bunsen burner __________.
_________________ shoes are recommended in the lab.

4. 2 When should you wear goggles in the lab?
If a chemical splashes on your skin, what should you do?
What should you do with unused chemicals?
How should you handle glass that you have been heating?
Should all chemicals be considered dangerous in the lab?

5. 3 Solve the Problems and explain what went wrong in the lab situations
PV=nRT, solve for R.
Diana and Mike were going to be late to their next class. After rushing to put away a few materials, they left the rest of the materials on the lab table.
The teacher was not in the room yet. Jake began weighing chemicals, touching them with his hands. His nose itched, so he rubbed it.
Cindy broke a test tube. Carefully she picked up pieces with one hand and placed them in her other hand. Then she dumped the glass pieces into the wastebasket.
-3x = x + 14, solve for x

6. 4 label each as a chemical or physical change
Liquid water freezing
Gasoline burning
Cooking an egg
If 2 clear liquids are mixed and small clumps fall to the bottom of the container.
A cube of orange colored sugar is dissolved into water resulting in an orange liquid.

7. 5 Make 3 qualitative observations about the picture.
Name 2 quantitative statements that could be made if this situation was occurring.

8. 6