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WorksheetsExperimental Design
Total questions: 40
Worksheet time: 40mins
Independent variable
Dependent variable
Conclusion
Maya designed an experiment to answer the following question: How does the amount of water given to a lima
bean seed affect how tall it grows?
In this experiment, what variable should Maya CHANGE?
the amount of water
the kind of plant
the type of soil
the amount of sunlight it gets
Esther became interested in insulation while her parent’s new house was being built. She decided to determine which insulation transferred the least heat. She filled each of 5 jars half-full with water.
She sealed each jar with a plastic lid.Then she wrapped each jar with a different kind of insulation. She put the jars outside in the direct sunlight. Later, she measured the temperature of the water in each jar. What is the independent variable?
The type of insulation
The temperature of the water
Number of houses
The amount of sunlight
only 1
The type of variable that responds to the experiment and is what you measure or count to determine if your hypothesis is true.
Thomas tests different types of liquids to see which will grow his plants the most. He has water, soda, milk, and no liquid at all. What is the control group?
the one with water
the one with soda
the one with milk
the one with no liquid
Cindy wanted to find out how the amount of sunlight affects the growth of plants. She placed a tomato plant in 6 identical 10 inch pots with the same amount and type potting soil. She watered them ¼ cup each day. 3 plants were placed under a cardboard box and 3 plants were placed in the sunlight. She measured the growth of the plant each week for three weeks.
What is the dependent variable?
Using the same type of plant
Each plant was placed in a 10 inch pot
The growth of the plant
3 plants in the sunlight and 3 plants under a box
A scientist hypothesizes that the temperature at which an alligator's egg is incubated will determine whether the alligator will be male or female. The independent variable is
Erin is testing to see how different amounts of nitrogen infused in the soil will impact the height of her corn plants. She puts two corn plants into two pots. One is filled with nitrogen infused soil and the other is not. She puts the regular soil pot outside and the nitrogen infused plant in her bathroom. The corn in the regular soil grows to 7 feet tall and the corn in the nitrogen soil grows to 2 feet tall.
What is the dependent variable?
The regular soil
The nitrogen infused soil
The height of the plants
The plant in the bathroom
Using the picture, identify the control group.
Trial 1
Trial 2
Trial 3
What makes a good scientific question?
The question can be answered by yes or no.
The question can be answered by doing an experiment.
The question can be answered through extended thought.
Cindy wanted to find out how the amount of sunlight affects the growth of plants. She placed a tomato plant in 6 identical 10 inch pots with the same amount and type potting soil. She watered them ¼ cup each day. 3 plants were placed under a cardboard box and 3 plants were placed in the sunlight. She measured the growth of the plant each week for three weeks.
What is the independent variable?
Using the same type of plant
Each plant was placed in a 10 inch pot
The growth of the plant
3 plants in the sunlight and 3 plants under a box
Which of these is a quantitative assessment?
He is tall
Ha jumps high
He wears 23
He is 6 feet 8 inches tall
Xavier’s team designed an experiment to answer the following question. How does the surface of a ramp affect how far a toy car rolls?
Which factor should Xavier keep the same in the experiment? (one or two answers)
the kind of car
the height of the ramp
the surface of the ramp
Melika made a model to help understand why craters on the moon are different sizes. She represented the moon’s surface with a pan of flour. Melika represented objects that hit the moon with marbles. She thinks that dropping marbles from a greater height will make the crater’s diameter larger.
What should she change in her experiment to test her hypothesis?
the weight of the marbles
the kind of flour in the pan
the height she drops the marbles from
the size of the marbles
What part of an experiment contains the data tables and graphs?
Analysis
Conclusion
Hypothesis
Materials
The one factor that a scientist controls during an experiment. This goes on the x-axis.
Independent Variable
Dependent Variable
The variable that is measured. It goes on the y-axis.
Independent Variable
Dependent Variable
When should a bar graph be used?
When comparing parts of a whole
When showing change over time
When comparing data between different groups of categories
Whenever you want
When should a line graph be used?
When comparing parts of a whole
When showing change over time
When comparing data between different groups of categories
Whenever you want
According to the pie chart, how much of a house's water usage is for showers?
26.7%
13.7%
21.7%
16.8%
What type of graph would you make to show how many of your classmates were born in each month of the year?
line
bar
circle
scatter plot
What is a data table?
Is a visual tool that uses that uses bars to compare data among categories
Used to compare the parts of a whole
Any display of information in tabular form, with rows and or columns named
Is a visual tool that uses that uses lines to compare data among categories
What relationship is shown on this graph?
The cooler the temperature, the louder the crickets chirp.
The crickets cannot chirp at temperatures lower than 10 degrees C.
The warmer the temperature, the more often crickets chirp.
The temperature and the chirping of crickets are not related.
You need to take a survey at school to see which type of lunch food is most preferred by 7th grade students.
Which type of graph would be best to display the data?
Line Graph
Bar Graph or Pie Chart
Scatter Plot
Funnel Chart
