Lab Safety
What is the first thing you should do if a chemical spills on your skin?
Tell a teacher
What is the first step in the scientific method?
Observation
Define variable.
A factor that can change in an experiment.
What are the three main states of matter?
Solid, liquid and gas.
Name one piece of personal protective equipment (PPE) that should be worn during a science experiment.
Goggles, apron, gloves, closed toe shoes
Define a hypothesis.
Your best guess to explain your question.
An educated guess.
An answer to your question.
How many variables can you test at a time?
1, one
Describe the characteristics of a gas.
No definite shape or volume
Why is it important to read the labels on chemical containers before using them?
Make sure it isn't poisonous. To see what safety precautions to take.
What is the purpose of conducting an experiment?
To test your hypothesis.
What do you do for your conclusion?
State whether your hypothesis is correct.
What happens to the particles of a solid when it melts?
They start moving further apart and faster.
The bonds break.
What should you do if you break glass during a lab.
Call the teacher, tell the teacher.
How can you determine if your hypothesis is supported or not?
If your experiment data proves it.
Do the steps of the scientific methods steps always followed in order?
No
True or False Particles move faster in a solid.
False
What should you do in case of a fire in the laboratory?
Pull the fire blanket out. Get under the shower, stop, drop and roll, push the red button.
Explain the importance of repeating experiments in scientific research.
To make sure you come up with the same results.
To prove the results are valid.
What is the significance of a control group?
It serves as comparison
How does temperature affect the state of matter of a substance?
As the temperature increases the particles move faster.
State of matter changes from solid to liquid or liquid to gas.