Measurement Part 1
Measurement Part 2
Measure Me
Variables
Variables Part 2
100
What tool would one use to measure length?
ruler (metric ruler)
100
What is the metric base unit for length?
meter (m)
100
24 ml
100
What is the variable that is changed by the researcher conducting an experiment?
Independent variable
100
Ms. Fegeas set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the dependent variable.
The distance the ball rolls off a ramp
200
What is a tool one would use to measure liquid volume?
graduated cylinder
200
What is metric base unit for measuring mass?
grams (g)
200
521.2 g
200
What is the variable that the scientist is measuring (seeing how it changes)?
Dependent variable
200
I want to conduct an experiment to see if the amount of light in the room affects how far I can see an object. What is the independent variable in this experiment?
Amount of light
300
What is a tool used to measure mass?
Triple-beam balance
300
What is the metric base unit for liquid volume?
liter
300
What is the volume of the ball?
100 mL (or 100 cm3)
300
What is the name for a variable that is kept the same in an experiment to keep the data valid?
Constant
300
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. What are TWO variables that must remain constant (the same)?
Examples:
Amount of soil
Amount of sunlight
Amount of liquid
Temperature
400
Convert the following:
4500 kg = ______ g
4,500,000 g
400
What is the measure of the amount of matter in an object?
Mass
400
What is the volume of this box?
32 m3
400
What is the name for the group in an experiment where the independent variable is not changed. It is kept at the norm and is used at a place to compare the results of the other groups.
Control
400
A student is testing the the affect of adding sugar to water on how big a plant grows. She waters one group of plants with sugar water and one group of plants with plain water.
What is the control?
Group of plants with plain water
500
Convert the following
34 cm = ______ mm
340 mm
500
What is the measure of the amount of space an object or substance takes up?
Volume
500
A mystery object has a mass of 30 g and a volume of 15 mL. What is its density?
2 g/mL
500
How many independent variables can you have in an experiment?
One
500
A student thinks that if he increases the amount of time he exercises, he can decrease the amount of time is takes to run a mile.
What would be the independent variable (IV) and dependent variable (DV) if the student was to test this hypothesis?
IV: Amount of time he exercises
DV: Amount of time he takes to run a mile