Metric Unit
What is the main unit for measuring length in the metric system?
meters
Which of these things would a life scientist study: A. The phases of the moon, B. the effects of pollution on turtles in the ocean, C. what causes a hurricane to happen?
B
True or false: Life scientists would study vaccines and try to improve them
True
How many meters are in a kilometer?
1000
When an entire species is being wiped out, it is called a(n) ___________
extinction
If you were wondering how much a few paperclips weighed, what metric system unit would you probably use?
Grams
How do you know if something is a valid, useful hypothesis or not?
it is testable. (you might also mention that it can be phrased as if....then...)
Which tool can magnify images the most: Compound light microscope, electron microscope, or MRI?
Electron microscope
What is the correct way to write the abbreviation for milimeter? MM, mm, mM, Mm, Mt, MT, mt, or mT?
mm
a possible explanation or answer to a scientific question is a _________
hypothesis
What unit is used to measure mass in the metric system?
grams
What does it mean for an expirement to be controlled?
It has only one variable
What imaging tool would a doctor use so they can more clearly see your heart, lungs, or bones?
X ray
How many centimeters are in a meter?
100
the measure of the amount of matter something is made of is called __________
mass
If you are measuring the amount of space something occupies, you are measuring ______?
volume
If I am trying to test if a new medicine works to relieve cold symptoms or not, the group I give no medicine to is called the ______ group
control
What imaging tool would you use to get a detailed image or your brain or the nerves in a spinal cord?
MRI (CT scan could also be used)
What happens at 0 degrees Celsius? AND what happens at a 100 degrees Celsius? (Hint: this is what the Celsius scale is based on)
Water freezes at 0 degrees and boils at 100 degrees.
A unifying explanation for a broad range of observations, facts, and tested hypotheses is called a _________
theory
Although scientists often use Celsius, what is the official metric system unit for temperature?
Kelvin
If I am performing an experiment to see if the 8th graders score higher on an exam when their is music playing, what is the independent variable and the dependent variable? (must get both correct to get points)
independent-if music is played
dependent-test scores
Name 2 reasons why you might use a scientific model instead of running an actual experiment?
Because a real experiment is too risky, impractical, or expensive or a model can do more trials faster.
A millimeter is how much of a meter?
.001 of a meter (There are 1000 millimeters in a meter)
The factor you change in a controlled experiment is a _________
hypothesis