Lab Safety & Lab Tools

What is a hypothesis?

• A hypothesis is the right answer to an experiment.
• A hypothesis is the wrong answer to an experiment.
• A hypothesis is an educated guess.
• I don't know.

What step does the scientific method begin with?

• hypothesis
• observation/question
• procedures
• conclusion

What is this science tool?

• jar
• beaker
• thermometer
• ruler

What is this science tool?

• sun glasses
• safety goggles
• hand lenses
• beaker

This piece of lab equipment is called a ___________________.

• triple beam balance
• spring scale
• thermometer
• graduated cylinder

This piece of lab equipment is called a _______________.

• beaker
• spring scale
• graduated cylinder
• thermometer

In a laboratory, the following should not be worn. 

• all of the answers
• dangling jewelry
• sandals
• loose clothing

If you do not understand a direction or part of a lab procedure, you should

• figure it out as you do the lab
• try several methods until something works
• skip it and go to the next part
• ask your teacher

You notice a beaker half full of a leftover powdered chemical and you are pretty sure you know which chemical it is.  You should

• Ask the teacher what to do with the chemical
• Pour the chemical back into the container you think it came from
• Pour the chemical into the garbage can
• Pour the chemical down the drain with the water running

The triple beam balance tool measures what 

• Mass
• Temperature
• Volume
• Capacity