Unit 1 Review- Safety- Experimental Design- Variables

During the lab it is okay to

• Have a snack
• Drink in lab
• Taste chemicals
• None of the above

It’s okay to pick up broken glass with your bare hands as long as the glass is placed in the trash.

• True
• False

When you are smelling a chemical you should

• Smell it directly
• Waft the odor
• Never smell
• Take a big sniff

Running in the lab is ok if you are not using chemicals

• TRUE
• FALSE

Information you gather using your 5 senses

• Observation

• Inference

• Hypothesis

• Analyze

Which statement is an observation?

• Mario's hat is red.

• Luigi wears green, it must be his favorite color.

• Wario is wet, it must be raining.

What is an inference?

• Just a guess

• A statement based on your observations.

• The same as an observation

Mr. Ferraro is dancing, so he must be happy.

• Observation

• Inference

The penguins are black and white.

• Qualitative Observation

• Inference

• Hypothesis

• Quantitative Observation

These kind of observations are made using instruments such as rulers, balances and thermometers.

• Qualitative Observations

• Quantitative Observations

• Scientific Observations