Variables
R & R
Experiment or Investigation?
Theory Vs Law
M
100
Different types of exercises such as jumping jacks or sit-ups result in different heart rates. Which variable represents changing the type of exercise?
What is the independent variable?
100
Bob goes to the lake to observe different birds over a period of 5 days. This is an example of what?
What is repetition?
100
True or false: An investigation in science includes variables to be tested.
What is false?
100
A body of knowledge that describes a natural phenomenon is known as this:
What is a law?
100
During a heat wave, meteorologist will show a weather map of different colors, red representing heat and blue representing absence of heat. This is an example of what?
What is a model?
200
Changing the amount of sunlight that a tree receives is an example of this type of variable
What is the independent variable?
200
Bob's friend goes to the same lake to see if he can observe the same birds his friend observed, using the same methods. This is an example of what?
What is replication?
200
True or false: Experiments in science test hypotheses.
What is true?
200
A body of knowledge that explains a natural phenomenon is known as this:
What is a theory?
200
During thunderstorms, meteorologists will use models to represent the amount of rainfall on maps. Name a color that represents rainfall on this model.
What is green, red or yellow?
300
A tree in the sun grows 20 feet taller than a tree in the shade. The growth of the tree is an example of this type of variable.
What is a dependent variable?
300
You go to the beach to count the number of sand crabs you see at dusk over a period of 2 weeks. This is an example of what?
What is repetition?
300
You want to know how long you can hold your breath under water. This is an example of a:
What is investigation?
300
True or false: A theory is weaker than a law.
What is FALSE!
300
This is why scientists use models in science:
To explain something that is hard to see.
400
Sally washes her hands after using the school bathroom. Billy does not wash his hands and he gets sick. What is the independent variable in this scenario?
What is washing your hands.
400
Another biologist is skeptical of the number of crabs you observed over a 2 week period so she goes to the same beach and uses the same methods to see if her results are similar to yours. This is an example of what?
What is replication?
400
You want to test which brand of soccer cleat has the best traction. This is an example of a:
What is an experiment?
400
Which body of knowledge illustrates the following statement:
An apple falls off of a tree and hits you on the head.
What is a law?
(The Law of Gravity)
400
True or false: Models can change with newly collected data.
What is true?
500
Sally washes her hands after using the school bathroom. Billy does not wash his hands and he gets sick. What is the dependent variable in this scenario?
What is getting sick/not sick?
500
This is the importance of replicating and repeating experiments in science:
What is to ensure the accuracy of the results.
500
This is why science is always changing:
What is new experiments and investigations lead to uncovering new ideas.
500
Which body of knowledge illustrates the following statement:
An apple is pulled off of a tree due to the force of gravity exerted by Earth's mass and hits you on the head.
What is a theory?
500
What is this an example of?
What is a model?