If the hypothesis was "Plants need water to grow", which would not be a controlled variable?

The amount of water given to the plant

Which is NOT true of the hypothesis?

It must state at least one controlled variable

Independent variable: "number of wings" & Dependent variable : "distance". Suitable Hypothesis?

The more wings the further a rocket will fly

Why should you always repeat an experiment?

The get an average for your results

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Scientific Method

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Questions 10

Answers

1
If the hypothesis was "Plants need water to grow", which would not be a controlled variable?
The type of plant used
What time of day the plant's height was measured
The amount of light the plant is exposed to
The amount of water given to the plant
2
If the hypothesis was "Plants need light to grow" then the independent variable would be
Height of the plant
Age of the plant
Sunlight
Light
3
Which type of graph would you use for comparing the sensitivity of different parts of the body?
Scatter plot
Pie chart
Bar graph
Line graph
4
The definition of the independent variable is
The thing that is measured
The thing that changes
The thing that is controlled
How many times the experiment is repeated
5
Which is NOT true of the hypothesis?
It must contain the dependent & independent variables
It is a statement
It is my opinion of what will happen
It must state at least one controlled variable
6
If the hypothesis was "Mice fed protein will live the longest", the control experiment would be
Mice fed protein
Mice given no food
Mice fed carbohydrates
Mice fed fats & oils
7
Independent variable: "number of wings" & Dependent variable : "distance". Suitable Hypothesis?
The more wings the further a rocket will fly
The less wings the faster the rocket will go
The more wings the straighter the rocket will go
The more wings the higher a rocket will go
8
If you were graphing the height of a plant over time, the label of the Y axis would be:
Height (cm)
Time (days)
Height (m)
Time (days)
9
If the hypothesis was "Exercise increases muscle mass" the dependent variable would be
How long the exercise went for
The type os muscle measured
The type of exercise
The weight of the muscle
10
Why should you always repeat an experiment?
The get an average for your results
To get practice doing investigations
To make the experiment fair
To make the experiment valid

Scientific Method Flashcards | StudBud