What process skill requires one to use hi/her body senses?

• Observing

• Inferring

• Measuring

• Classifying

Tags

NGSS.MS-LS1-8

Interpreting a given observation requires one's opinion and judgment. This skill is called ____.

• Measuring

• Guessing

• Hypothesizing

• Inferring

Which of the following is an example of an observation and not an inference?

• I think it's going to rain this afternoon.

• People are getting bored staying home because of the total lockdown,

• I just picked a dozen of fresh and red tomatoes in the garden.

• She really looks stunning as she moves on the ramp.

If the mass of a paper plane is increased, then its flying time also increases. This statement is called a/an ____.

• inference

• hypothesis

• prediction

• observation

Tags

NGSS.MS-PS2-2

The factor that a researcher intentionally changes in his experiment is known as ______ variable

• controlled

• dependent

• independent

• responding

Tags

NGSS.MS-PS2-2

Some students tested the effect of increasing the size (surface area) of a coin on the number of water droplets it could hold. All of the following factors should be kept constant, EXCEPT:

• size of dropper

• size of coin

• size of droplets

• coin material

Which of the types of graph below is the most appropriate to use if the independent variable is quantitative and continuous?

• bar graph

• pie graph

• pictograph

• line graph

In which of the following situations is using a line graph more appropriate than a bar graph?

• A seed was planted. As the plant grew, it was measured (in cm) over a six-day period.

• Tomato plants were grown at various temperatures (in degrees Celsius). The number of tomatoes that grew on each plant was counted.

• Students in a science class were asked what type of pet they have. The number of each type of pet was recorded.

• Different types of balls were bounced from a table top. The height of each bounce was measured (in cm).

Tags

NGSS.MS-PS3-1

Which two of the following laboratory instruments are the most appropriate to use to determine the density of an unknown irregular solid?

• an equal-arm balance and a meter stick

• a triple-beam balance and a graduated cylinder

• a weighing scale and a beaker

• a digital balance and a ruler

Which of the processes below is the most important step to do when a science researcher wants to test his hypothesis?

• make a social survey

• gather information in the library

• conduct an experiment

• interview experts in the field

Tags

NGSS.MS-PS2-2