Scientific Method

During an experiment about a coin and feather that were dropped at the same time, it was found that the coin reached the ground first. One student said: “Maybe, the coin is heavier than the feather.” What do you call this kind of statement?

• a problem

• a hypothesis

• an interpretation

• a conclusion

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

A biology student wanted to study the effect of fertilizer on the growth of pepper plants. He placed four of the same type of pepper plants into separate containers, each containing the same amount of soil. Each pot received a different watering solution, containing varying amounts of fertilizer. What is the dependent variable in this experiment?

• amount of soil

• amount of fertilizer

• type of tomato plant

• height of the plants

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

A scientist who wants to study the effects of fertilizer on plants sets up an experiment. Plant A gets no fertilizer, Plant B gets 10 mg. of fertilizer each day, and Plant C gets 20 mg. of fertilizer each day. Which plant is the control group?

• Plant A

• Plant B

• Plant C

• Both Plant A and B

Tags

NGSS.MS-LS2-1

Which of the following is the best example of a hypothesis?

• Do hamsters live longer than birds?

• I think dogs make better pets for everyone.

• Cars and trucks usually use the same amount of gasoline.

• Brand B lightbulb will burn longer in a lamp than Brand X lightbulb.

A method of doing research that includes the steps of identifying a problem, gathering data, forming a hypothesis, testing a hypothesis, and drawing a conclusion.

• hypothesis

• scientific method

• variable

• conclusion

What is the importance of doing scientific investigation?

• It helps create jobs for scientists.

• It creates more questions to be answered.

• It ensures that many tools are used safely and accurately.

• It allows for new discoveries and knowledge in the area of science.

Tags

NGSS.MS-LS1-1

NGSS.MS-PS1-2

NGSS.MS-PS3-4

Glory wants to know which location in her apartment is best for growing Peace lilies. She has three Peace Lilies. She puts one on the balcony, one by the kitchen window, and one on the mantel in the living room. Each plant has the same size, pot, soil, and Glory gives each plant the same amount of water.

Based on the scenario, which one is considered as independent variable?

• how the plants grow

• the amount of water

• the location of plants

• the type of soil

Tags

NGSS.MS-LS1-5

Glory wants to know which location in her apartment is best for growing Peace lilies. She has three Peace Lilies. She puts one on the balcony, one by the kitchen window, and one on the mantel in the living room. Each plant has the same size, pot, soil, and Glory gives each plant the same amount of water.

Based on the scenario, which of the following is an appropriate hypothesis for the experiment?

• If she waters the Peace Lilies twice as much, then it will grow faster.

• If she exposes the Peace Lilies near to the Sun, then it will grow faster.

• If she put fertilizer, then it will grow faster.

• All of these

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Glory wants to know which location in her apartment is best for growing Peace lilies. She has three Peace Lilies. She puts one on the balcony, one by the kitchen window, and one on the mantel in the living room. Each plant has the same size, pot, soil, and Glory gives each plant the same amount of water.

Based on the scenario, which of the following is considered as a control variable?

• A. Type of soil

• B. Location of plants

• C. Amount of water

• Both A and C

Tags

NGSS.MS-LS1-5

What do you do to test a hypothesis?

• Draw a conclusion

• Design an experiment

• Publish a scientific paper

• All of the above

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

NGSS.MS-PS2-2