The variable in the experiment that is manipulated is the ____.
What is the "independent variable"
What are the two measurements used to calculate density?
Mass & Volume
What tool measures length?
Ruler
Before performing any experiment, what should you do?
Read all directions carefully
What is the formula used to calculate density?
Density equals mass divided by volume
Protects your eyes and face during an experiment.
What is "safety goggles"
What should you do if you do not understand the experimental procedure?
Ask the teacher
A metal ball has a mass of 2 kg and a volume of 6 m3. What is its density?
1/3 kg/m3 or 0.33 kg/m3
Used to measure the volume of liquids
What is a "graduated cylinder"
If glassware is broken in the lab, what should you do?
Report it to the teacher immediately
Jane is investigating to find out if bean plants grow taller in ordinary topsoil or special potting soil over a three week period. She sets up her investigation with 10 bean plants of equal size in each type of soil. What is the independent variable?
type of soil
Water has a density of 1 g/ml. What is the mass of the water if it fills a 10 ml container?
10 grams
In the lab, what unit is temperature measured in?
Celsius
Name two things it is important to know the location of in a lab.
(Any two) fire extinguisher, fire blanket, eyewash station, first aid kid
Jordan wants to find out if a hamster can learn a maze as quickly as a mouse can. She has researched mice and hamsters and predicts which rodent she thinks will learn more quickly. What would the dependent variable be?
Time to complete the maze
What is the volume of a marble that has a mass of 3 g and d density of 2.7 g/mL?
1.11 mL
What does a triple-beam balance measure?
What is a "mass"
No loose clothing should be worn. Long hair should be tied back.