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20 questions
Molly harvests mushrooms in the forests of Oregon and then sells them to local restaurant chefs. The greater the weight of the mushrooms, the greater their value.
w = the weight of the mushrooms
v = the value of the mushrooms
v is the independent variable and w is the dependent variable
w is the independent variable and v is the dependent variable
A team from the Department of Public Works is painting lines of the freeway. The number of hours needed to finish the project depends on the length of road that needs to be lined.
h = the number of hours needed
r = the length of road
h is the independent variable and r is the dependent variable
r is the independent variable and h is the dependent variable
Zach and his friends are at an arcade and are redeeming their tickets for prizes. The number of prizes they can get is calculated based on how many tickets they have won.
p = the number of prizes the friends can get
t = the number of tickets the friends have won
t is the independent variable and p is the dependent variable
p is the independent variable and t is the dependent variable
"Do tomatoes grow faster under fluorescent, incandescent, or natural light?"
What is the independent variable?
type of light
rate of growth
"Which brand of bubblegum will have the biggest bubble?"
The size of the bubble is the __________ variable.
independent
dependent
Your friends invite you to a party and you decide to attend, but you're worried that staying out too long will affect how well you do on your geometry test tomorrow morning. Your exam score is the __________ variable.
independent
dependent
When scientists follow the steps of an experiment procedure, they're doing it in order to:
Test the hypothesis
Determine the problem they need to solve
Establish a control group
Waste time
What scientific instrument is used to measure the mass of an object?
Triple beam balance
Graduated cylinder
Meter stick
Sonic screwdriver
In a science experiment, ______________ is when you gather background information about the problem you're trying to solve.
Research
Drawing conclusions
Stating a hypothesis
Analyzing data
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