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WorksheetsExperimental Design
Total questions: 16
Worksheet time: 22mins
If you increase the temperature of the water, then the egg will cook faster.
IV:____________________ DV:____________________
IV: Temperature of the water
DV: Cooking speed of the egg
IV: Cooking speed of the egg
DV: Temperature of the water
IV: Size of the egg
DV: Temperature of the water
IV: Temperature of the water
DV: Size of the egg
An investigation was done to see if keeping the lights on for different amount of time each day affected the number of eggs the chicken lays.
IV:____________________ DV:____________________
IV: Amount of time lights are on
DV: Number of eggs laid by the chicken
IV: Number of eggs laid by the chicken
DV: Amount of time lights are on
IV: Temperature of the room
DV: Number of eggs laid by the chicken
IV: Amount of food given
DV: Number of eggs laid by the chicken
The time it takes to run a mile depends of the amount of exercise a person gets.
IV:____________________ DV:____________________
IV: Amount of exercise
DV: Time to run a mile
IV: Time to run a mile
DV: Amount of exercise
IV: Distance of the mile
DV: Amount of exercise
IV: Weather conditions
DV: Time to run a mile
Grass will grow taller if it is watered and fertilized more.
IV:____________________ DV:____________________
IV: Watering and fertilizing
DV: Height of grass
IV: Amount of sunlight
DV: Color of grass
IV: Type of soil
DV: Growth rate of grass
IV: Temperature
DV: Thickness of grass
An investigation was performed to see if corn seeds would sprout at different times depending on the temperature of the air in which they were placed.
IV:____________________ DV:____________________
IV: Temperature of the air
DV: Time taken for corn seeds to sprout
IV: Time taken for corn seeds to sprout
DV: Temperature of the air
IV: Amount of water
DV: Time taken for corn seeds to sprout
IV: Type of corn seeds
DV: Temperature of the air
If you sell more fertilizer, then there will be more algae growth in local lakes.
IV:____________________ DV:____________________
IV: Number of sacks of fertilizer sold
DV: Amount of algae growth in lakes
IV: Amount of algae growth in lakes
DV: Number of sacks of fertilizer sold
IV: Temperature of the lake
DV: Number of sacks of fertilizer sold
IV: Amount of rainfall
DV: Amount of algae growth in lakes
The amount of pollution produced by cars was measured for cars using gasoline containing different amounts of lead.
IV:____________________ DV:____________________
IV: Amount of lead in gasoline
DV: Amount of pollution produced by cars
IV: Type of car
DV: Amount of lead in gasoline
IV: Amount of pollution produced by cars
DV: Type of fuel used
IV: Speed of the car
DV: Amount of pollution produced by cars
Students in science class carried out an investigation in which a flashlight was pointed at a screen. They wanted to find out if the distance from the light to the screen had any affect on the size of the illuminated area.
IV:____________________ DV:____________________
IV: Distance from the light to the screen
DV: Size of the illuminated area
IV: Size of the illuminated area
DV: Distance from the light to the screen
IV: Brightness of the flashlight
DV: Size of the illuminated area
IV: Color of the light
DV: Size of the illuminated area
The score on the final test depended on the number of study questions the student completed.
IV:____________________ DV:____________________
IV: number of study questions completed
DV: score on the final test
IV: score on the final test
DV: number of study questions completed
IV: time spent studying
DV: score on the final test
IV: number of classes attended
DV: score on the final test
A study was done with white rats to see of the number of offspring born with birth defects was related to the number of minutes of exposure to x-rays by the mother rats.
IV:____________________ DV:____________________
IV: Number of minutes of exposure to x-rays
DV: Number of offspring born with birth defects
IV: Number of offspring born with birth defects
DV: Number of minutes of exposure to x-rays
IV: Number of mother rats
DV: Number of offspring born with birth defects
IV: Number of offspring born with birth defects
DV: Number of mother rats
Five groups of rates are fed identical diets except for the amount of vitamin A that they receive. Each group gets a different amount. After 3 weeks on the diet, the rats are weighed to see if the amount of vitamin A received has affected their weight.
IV:____________________ DV:____________________
IV: Amount of vitamin A
DV: Weight of the rats.
IV: Temperature
DV: Color of the leaves.
IV: Amount of sunlight
DV: Height of the plants.
IV: Type of soil
DV: Growth rate of the plants.
The state agriculture department has been counting the number of foxes in Brown county. Will the number of foxes have any affect on the rabbit population?
IV:______________________ DV:____________________
IV: number of foxes
DV: rabbit population
IV: rabbit population
DV: number of foxes
IV: number of rabbits
DV: fox population
IV: fox population
DV: number of rabbits
Identify the Independent Variable (IV) and the Dependent Variable (DV) in the experiment.
Harry is performing an experiment. He will be adjusting the temperature to see if plant growth is affected.
IV: Temperature DV: Plant Growth
IV: Light Intensity DV: Water Amount
IV: Fertilizer Type DV: Soil Type
IV: Water Amount DV: Light Intensity
Which of the following are good, testable hypotheses?
If I do 25 push ups a night, the time it takes to do the push ups will decrease.
If I give my cat a treat, she will love me more.
If I do a blind taste test between Pepsi and Coke, then more people will prefer Pepsi.
If I swim 15 laps a day, then people will smile bigger at me.
Exploring Paper Flight
Seventh graders in Mrs. Franklin's class explored how long different types of paper folded into airplanes can fly through the air. They used three types of paper: regular printer paper, cardstock, and tissue paper. The students hypothesized that lighter paper would stay in the air longer. To test this, they crafted identical paper airplanes from each type of paper.
The students carefully measured the weight of each paper type before folding them into airplanes. Cardstock was the heaviest, followed by printer paper, with tissue paper being the lightest. They predicted that the tissue paper airplane would have the longest flight time due to its light weight.
To measure flight time, the students launched each airplane from the same height and used a stopwatch to record how long it stayed in the air. They repeated the test multiple times to ensure accuracy. The results showed that the tissue paper airplane indeed had the longest flight time, confirming their hypothesis about the impact of paper weight on flight duration.
What is the independent variable in this scenario?
The height from which the students throw the airplanes
The amount of time the airplane flies
The type of paper
How air resistance affects flight time
What is the dependent variable in this scenario?
The air resistance
The height from which the students threw the plane
The type of paper
The amount of time the plane spent in the air
Which of the following should be kept constant during this experiment?
the air flow in the area the planes are flown
the plane design
the type of paper
the person throwing the paper planes
Which of the following is quantitative data that will be obtained during the experiment?
the time the planes were in the air
the types of paper
the style of the airplane
the distance the planes flew
What was confirmed by the results of the experiment?
Lighter paper stays in the air longer
Heavier paper flies further
All paper types have the same flight time
Construction paper is the best for making airplanes
Match the following
qualitative observations
observations that cannot be measured
quantitative observations
observations that are measured
hypothesis
an educated guess about what will happen
data
facts used to make conclusions
variable
anything that changes or can be changed
