Practice of Science Quiz

A scientific theory is

• the same as a fact

• a rule describing a pattern in nature

• an untested idea

• generally accepted to be true

The factor that is CHANGED by the investigator to observe how it affects an outcome (dependent) variable is called the

• outcome variable (dependent)

• test variable ( independent)

• control

• data collection

A scientific law is

• describes a pattern in nature that is ALWAYS true

• laws scientists need to follow to perform science correctly

• the steps scientists follow to investigate our natural world

• an explanation of observations or events gained through many observations and investigations

A hypothesis is a/an

• prediction about what might occur during a future event

• correct explanation for an observation that can be tested during scientific investigations (or experiments)

• possible explanation of an observation that can be tested during a scientific investigation (or experiment)

• the results of the data collection from a scientific investigation

There is a pond behind Luke's house. He decides to see how the water temperature changes depending on the depth of the water. Which is the outcome (dependent) variable

• temperature

• depth

• both a and b

• neither a nor b

Tags

NGSS.MS-PS3-4

Explaining or interpreting the things you observe based on reasoning from what you already know is called....

• observing

• inferring

• predicting

• classifying

Tags

NGSS.MS-LS4-2

The turtle ate 100 grams of lettuce is an example of what type of data?

• quantitative

• qualitative

Scientists often form a hypothesis, a hypothesis is an attempt to explain an observation. Which of the following is an example of a person who is not a scientist but is still forming a hypothesis?

• a baker who thinks that a cake did not turn out well because the oven temperature was too hot

• a reporter searching for facts

• a detective who identifies a suspect based on collected evidence

• a science teacher correcting a test

Which of the following is a good way to show how data changes over time?

• a line graph

• a circle graph

• a stem and leaf plot

• a box and whisker plot

Tags

NGSS.MS-PS3-1

Which of the following would be the outcome variable (dependent variable) for the following research question? How does the color of dye (food coloring) affect the time it takes for a drop of dye to completely spread out?

• the brand of food coloring

• the time for the dye to spread out

• the shape of the container

• the mass of water