Question

Question 1

Answer 1

Question 1Which of the following describes the treatment in an investigation?

the factor that is changed in order to observe a response

Question 2
Which statement best describes an independent variable?

The variable you change in an investigation


Question 3
Liam did an investigation to see how water temperature affects the amount of salt that will dissolve in the water. He filled 4 beakers with exactly 100 milliliters of water each. He then heated each beaker to a different temperature and tested salt solubility at each different temperature. What was Liam's independent variable?

the temperature of the water in each beaker

Question 4
Which of the following is an example of a treatment?

Changes made to the temperature of a greenhouse



Question 5
Jose is curious about which home remedy removes skunk smell from his dog. Which of the following is a variable that must be kept constant?

The home remedy used


Question 6
It is not important to make sure that all variables other than the independent variable are kept constant.

 False

Question 7
In order to determine whether or not a substance is an acid or a base, you may stick your finger in the container and make your decision based on whether or not your finger feels slippery.
False

Question 8
A poison hazard symbol means your should not let chemicals contact your skin, ingest or inhale the substance.

True 


Question 9
Repeating an experiment is important because

it reduces the chance of error

Question 10
When using repeated trials during a scientific investigation, scientists should find the average of their data for use in their final report.


True