WorksheetsQuiz Review 1 Phillips
Total questions: 10
Worksheet time: 23mins
Which variable goes on the X axis?
Independent
Dependent
Mrs. Cote wanted to know if the iPhone could stand up against being dropped from different heights. She dropped them from 3 heights and saw if they broke. What is the dependent variable (being measured)
Dr. Eversole sets up an experiment on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid: water, orange juice, or soda Each plant has the same amount of soil & sunlight. What is the independent variable?
Type of plant
Plant growth
Type of liquid
15. Matias wants to see if his dog will lose weight if he takes his dog for a walk once a day,twice a day or three times a day. What is the independent variable in this investigation?
The breed of dog
How many times they go for a walk each day
The dog's weight
How fast they walked
At what temperature did bread mold the slowest?
20
40
60
100
Marsha observes that ants are attracted to a spilled soft drink. She makes a hypothesis that ants are attracted to sweet liquids. She places small samples of five different sweet liquids on the ground along with five equal-sized samples of water and observes the ants. She notices ants at the sites where the sweet liquids were placed, but not at the sites where the water was placed. Which of the following provides the best conclusion based on these observations?
Marsha’s observations prove that her hypothesis is correct because the ants are found only at the sites of the sweet liquids.
Marsha’s observations fail to support her hypothesis because she did not use enough samples.
Marsha’s observations fail to support her hypothesis because she used five different types of sweet liquids but only one type of “unsweetened” liquid.
Marsha’s observations support her hypothesis because ants are found at all of the sites with the sweet liquids but at none of the sites containing water.
Jose states the following hypothesis: Common household cleaners kill some, but not all bacteria on kitchen counters. He uses four common household cleaners in a controlled experiment to test his hypothesis. The percentage of bacteria killed by each of the cleaners is reported in the table below.
Which of the following can be concluded from the data in the table?
The data neither support nor fail to support Jose’s hypothesis.
The data are opposite of what Jose’s hypothesis predicted, so he is clearly wrong.
The results fail to support Jose’s hypothesis, but he may find them valuable in reformulating his hypothesis.
The data support Jose’s hypothesis that household cleaners are unable to kill all of the bacteria.
Simran is learning how to design an experiment to test a hypothesis. Why should most scientific hypotheses be tested in controlled conditions?
to avoid having the experiment become dangerous
to limit the variables that can affect the experiment
to make the experiment easier to conduct
to keep the experimental area sterile
How many more average daily calories are needed by a 17 year old male than by a 17 year old female?
300
500
2700
3000
A scientist wanted to see if the amount of garbage that Americans threw away changed over time. He collected information and then showed his results in the graph below.
Based on this graph, what could the scientist say about the amount of garbage that each person threw away?
It increased over time
it decreased over time
it increased the most in 1980
It decreased the most in 1990
