Scientific Method Test 2025 [A]
Quiz
•
others
•
7th Grade
•
Practice Problem
•
Hard
Blair Davidoff
Used 1+ times
FREE Resource
Enhance your content in a minute
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Sarah designed an experiment to find out which mouthwash was most effective against some bacteria. She cut out four different circles from a paper towel and soaked each circle in a different mouthwash. She put the circles on a nutrient agar-coated petri dish that was covered with bacteria commonly found in the mouth. She then incubated the plate for 24 hours. The picture shows the results of this test. Which of the following should Sarah do to improve her experiment?
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
An experiment for a new asthma medication was set up into two groups. Group one was given the new drug for asthma, while group 2 was given a sugar pill. The sugar pill serves as a ____________.
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Which sentence best states the importance of using control groups?
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
A student decides to set up an experiment to see if detergent affects the growth of seeds. He sets up 10 seed pots. 5 of the seed pots will receive a small amount of detergent in the soil and will be placed in the sun. The other 5 seed pots will not receive detergent and will be placed in the shade. All 10 seed pots will receive the same amount of water, the same number of seeds, and the same type of seeds. He grows the seeds for two months and charts the growth every 2 days. What is wrong with his experiment?
5.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Express your answer to the nearest mL.
6.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Express your answer to the nearest mL.
7.
FILL IN THE BLANK QUESTION
3 mins • 1 pt
Express your answer to the nearest 0.1 mL.
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