WorksheetsUnit 1 Review
Total questions: 21
Worksheet time: 16mins
Which container is the control group?
A, because it has water
A, because it does not have fertilizer
B, because it has fertilizer
A & B, because they start at 2.0
The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect
independent variable
dependent variable
control variable
The independent variable is
The variable that you change in an investigation
The variable that you measure in an investigation
A variable that you keep the same in an investigation
Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.
What is the dependent variable?
Dropping the same way
Wing Length
Amount of time it takes the helicopter to hit the floor
Dropping from the same height
Ben makes five paper helicopters with different wing lengths. He drops them the same way from a height of two meters for five trials each. He records the amount of time it takes for each helicopter to fall to the ground.
What is the independent variable?
Dropping the same way
Wing Length
Amount of time it takes the helicopter to hit the floor
Dropping from the same height
Cindy wanted to find out how the amount of sunlight affects the growth of plants. She placed two tomato plants in 10 inch pots with potting soil and watered them ¼ cup each day. One plant was placed under a cardboard box and one was placed in the sunlight. She measured the growth of the plant each week for three weeks.
What are two CONSTANTS? (Select 2)
Using the same type of plant
Each plant was placed in a 10 inch pot
The growth of the plant
One plant is in the sunlight and the other is under a box
What conclusion can you make from this graph?
It is hottest during the day
Temperature drops as the night goes on
The change in temperature is not significant
It takes a long time for air temperature to change
What hypothesis best matches this graph?
Pets can be adopted any time of year
Pets are adopted because they are cute
In springtime, there are fewer pets in animal shelters
There are most pets in animal shelters in April
Which variable goes on the x-axis?
Control Variable
Dependent Variable
Independent Variable
Constants
What's a conclusion that could be made from this data?
There is no relation between temperature & heart rate
Heart rate only increased at temperatures above 20oC
Heart rate increased initially, but then decreased
Heart rate increases as temperature increases
What is the Independent Variable (IV)?
Data
Temperature (oC)
Heart Rate (beats/min)
Type of exercise
How many pets are available for adoption in March?
Over 20
20
17
15
Why is she wearing goggles, gloves, and a mask?
To protect her face & hands from from chemicals
To protect her clothes from chemicals
To prevent the room from getting messy
To prevent germs from getting on her
(Only look at the trend of the graphs) You notice that the number of squirrels around a neighborhood park continues to rise. Which graph represents your data?
Describe what happens to the DV (Y-axis)
It increases forever (exponentially)
It increases then becomes constant
It increases then decreases
It continues to increase
There are many, many cells packed tightly together with purple nuclei in the centers
Qualitative Observation
Quantitative Observation
Inference
Hypothesis
These are probably animal cells, because plant cells are always rectangles.
Qualitative Observation
Quantitative Observation
Inference
Hypothesis
Each beaker has over 500 mL of water in it
Qualitative Observation
Quantitative Observation
Inference
Conclusion
