SEAMS Review

Scientists are looking to determine if a chair is made of different materials will it raise a person's anxiety levels. They plan to set up five chairs. Which variable should change in each chair?

• the color used

• the type of chair

• the amount of time the person spends in the chair

• the material the chair is made out of

Which of these questions can be answered through scientific investigation?

• Which tree has the prettiest leaves?

• Which tree has leaves with the best color?

• Which tree has the biggest flowers?

• Which tree has flowers that smell the best?

Which of the following questions is testable through a scientific investigation?

• What type of candy flavor has the best taste?

• What happens when salt and sand are mixed?

• How are insects and worms different?

• How does the size of a rubber ball affect the bounce height?

Tags

NGSS.MS-PS2-2

What is the first step in the scientific method?

• construct a hypothesis

• do background research

• ask a question

• analyze data

Waldriana would like to investigate the effect of temperature on the amount of food birds eat.  What should she do first to begin her investigation?

• develop a question 
• conduct background research
• design an experiment
• come up with a theory

Tags

NGSS.MS-ETS1-1

Rigoberto writes down his hypothesis that more salt will dissolve in cold water than in warm water.  He adds salt to different temperatures of water and records his observations including the amount of undissolved salt.  He finds that there is more salt dissolved in warm water than cold water.  What should Rigoberto do next to make sure that his conclusion is valid?

• do another investigation with sugar
• repeat his investigation using a different liquid than water
• repeat his investigation to see if his results are the same
• change his results to match his original hypothesis

Austin is studying states of matter by heating water in a pan.  Which statement from his notebook is an observation?

• It is hard to estimate the size of the bubbles.
• Tiny bubbles form on the bottom of the pan.
• The bottom of the pan must be very hot.
• I think there is air in the bubbles.

Tags

NGSS.MS-PS1-4

A scientist says that she has made an important discovery about sound waves.  What needs to happen for most other scientists to accept her results?

• The scientist has to explain her results to other scientists.
• Many scientists need to review the results.
• The scientist needs to publish her results in a journals.
• Other scientists need to be able to get the same results.

Jaylynn says a baseball and a basketball will fall at the same speed.  Her friend disagrees.  Which of these is the best way for them to find out?

• drop both balls from a high place and compare how fast they fall
• ask an adult which one is right
• explain their reasons to each other
• ask twenty different people on the playgroup what they think

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

Scientists are studying how bears kept in zoos behave.  Which of these would be the best control group?

• bears in the wild
• bears kept as pets
• other animals in zoos
• other animals in the wild