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- Multiple ChoicePlease save your changes before editing any 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
- Multiple ChoicePlease save your changes before editing any questions.
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
- Multiple ChoicePlease save your changes before editing any questions.
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
- Multiple ChoicePlease save your changes before editing any questions.Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the independent variableType of fertilizerSize of sunflowertype of sun flower
- Multiple ChoicePlease save your changes before editing any questions.Steve wanted to see if the type of fertilizer made sunflowers grow larger. What is the dependent variableType of fertilizerSize of sunflowerType of sunflower
- Multiple ChoicePlease save your changes before editing any questions.The part of the experiment that remains the same for the control and experimental group.constantscontrolindependentdependent
- Multiple ChoicePlease save your changes before editing any questions.This variable in an experiment is the one being deliberately changed by the scientist.dependent variableindependent variabledatacontrol group
- Multiple ChoicePlease save your changes before editing any questions.In a controlled experiment, how many variables can be worked with at a time?onenonetwo or morehow ever many makes sense.
- Multiple ChoicePlease save your changes before editing any questions.A possible explanation to a problem that has not yet been tested.datatheoryhypothesisfact
- Multiple ChoicePlease save your changes before editing any questions.This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted.experimental groupcontrol groupdatavariables
- Multiple ChoicePlease save your changes before editing any questions.The summary at the end of an experiment that explains the results.conclusionproceduresmaterialsresponding variable
- Multiple ChoicePlease save your changes before editing any questions.A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?heart ratetype of exerciseamount of exercisetime of day exercise occurs
- Multiple ChoicePlease save your changes before editing any questions.An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, what are the controlled variables?Type of plant, amount of music, and sunlightWater, apple juice, milkPlant growth
- Multiple ChoicePlease save your changes before editing any questions.Which is NOT a step in the scientific method?Make observationForm a theoryCollect dataForm a hypothesis
- Multiple ChoicePlease save your changes before editing any questions.
"Do tomatoes grow faster under fluorescent, incandescent, or natural light?"
What is the independent variable?
type of light
rate of growth
- Multiple ChoicePlease save your changes before editing any questions.
"Which brand of bubblegum will have the biggest bubble?"
The size of the bubble is the __________ variable.
independent
dependent
- Multiple ChoicePlease save your changes before editing any questions.
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
- Multiple ChoicePlease save your changes before editing any questions.
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
- Multiple ChoicePlease save your changes before editing any questions.
What scientific instrument is used to measure the mass of an object?
Triple beam balance
Graduated cylinder
Meter stick
Sonic screwdriver
- Multiple ChoicePlease save your changes before editing any questions.
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