Experiments and Scientific Method
A possible explanation to a problem that the scientist bases off of observations, and then tests in an experiment is:
a. hypothesis, b. scientific law, c. variable, d. experiement
a Hypothesis
What is the base metric unit for length?
meters
How many centimeters are in a meter?
100
What would a physical scientist study?:
a. The motion of atoms
b. Bacteria
c. Migrating birds
d. Ancient Rome
A. How atoms move
What is the name for the series of steps scientists use to conduct an experiment (hypothesis, observations, etc)?
Scientific method
If I am measuring if the 9th graders grades go up if I give more homework, what is the independent variable?
amount of homework given
Which one is the metric unit for mass: grams, pounds, Kelvin, or parsnips
grams
How many grams are in a kilogram?
1000
What kind of graph is used to show the percentage of a whole?
Pie graph/circle graph
The factor that changes in an experiment is a ____
variable
If I am measuring if the 9th graders grades go up if I give more homework, what is the dependent variable?
if the grades go up
What happens at 100 degrees Celsius?
Water boils
78 kilograms is the same as how many grams?
78000
Explain one reason why a scientist might use a model
Varies. (too expensive, too small or large to study, etc)
The amount of space that an object takes up is the __
volume
Explain the difference between a hypothesis and a theory
A hypoethesis is your possible answer to your scientific question, which you will test in an expirement. A theory is an explanation of how things happen based on many observations and experiments and data
What happens at 0 degrees Celsius?
Water freezes
8900 meters is how many kilometers?
8.9
Which type of graph would you use to chart the changes in inflation over time?
Line graph
What is the factor that does NOT change in an experiment?
Constant
In an experiment, if I am testing the effects of different brands of fertilizer on plants, and there is one group of plants I do not put fertilizer on, the group that does not receive any fertilizer is called the _______
control group
What does Kelvin measure?
Temperature
If there are 3.8 liters in a gallon, then convert 5 liters to gallons
1.3
Explain one way a graph can be misleading
What is the term for the mass per unit of a material?
Density