What stays the same or what we measure our independent variable against
100
Mr. Saettele gave each child a special juice before a test to see if it helps, is this a fair or unfair test?
Unfair, how can he tell if EVERYONE gets the special juice
100
The higher the temperature of the air in the oven, the faster a cake will bake.
What is the independent variable?
200
What is the 2nd step of the scientific Method?
Research
200
What is the dependent variable?
What we measure in the experiment
200
If Mr. Saettele uses fertilizer vs regular soil for an experiment which is the control?
Regular dirt
200
Mr. Saettele gives 2 girls special juice and 10 boys special juice before a test. Then he gives 3 students water. Is this a fair or unfair test?
Unfair, you have to have equal groups so 5 special juice 5 just water
200
The higher the temperature of the air in the oven, the faster a cake will bake.
What is the dependent variable?
300
The third step of the scientific method is the hypothesis, what 2 words are needed to write a hypothesis?
"If / Then"
300
What is the control variable in an experiment?
What stays the same, otherwise what we're measuring our independent variable against.
Example: regular dirt would be our control
300
A student wanted to test how the mass of a paper airplane affected the distance it would fly. Paper clips were
added before each test flight. As each paper clip was added, the plane was tested to determine how far it would
fly.
What is the control?
300
Mr. Saettele gives 5 students special juice and 5 students water before a test to see how they'll perform. Is this fair or unfair?
Fair test you have an ind. variable and a control
300
The higher the temperature of the air in the oven, the faster a cake will bake.
It's not stated, so think. What is the control? What has to stay the same.
Type of cake you're baking
400
What step do we use graphs and data for?
Analyze results
400
What famous singer do I use for the independent variable as an example?
Beyonce - cause she's Mrs. Independent
400
The height of bean plants depends on the amount of water they receive.
Identify the control
400
Mr. Saettele wants to see if his fertilizer will work on his roses. He places one rose with fertilizer in the basement with no sunlight and the other rose with regular dirt near a window. Is this fair or unfair?
Unfair, both rose plants need to have the same amount of light
400
The time it takes to run a mile depends on the person’s running speed.
What is the independent variable?
Running Speed
500
The last step is to draw conclusions. Explain what this means
Did the experiment work, yes or no, and why?
500
The height of bean plants depends on the amount of water they receive.
Identify the independent variable
500
Two groups of students were tested to compare their speed working math problems. Each group was given
the same problems. One group used calculators and the other group computed without calculators.
Which is the control?
Group without calculators
500
we want to measure which is the fastest toy car to coast down a sloping ramp. If we gently release the first car, but give the second car a push start, did we do a fair test of which car was fastest?
No, you gave the second car a push.
500
The time it takes to run a mile depends on the person’s running speed.
What is the control? What has to stay the same