Mstep Science Review

Which of these BEST describes the change in salt grains as they dissolve in water?

• The grains change their chemicals until they become water.

• The grains get higher in temperature until they melt into a liquid.

• The grains get smaller in size until they can no longer be seen.

• the grains are washed clean until they are perfectly clear.

Tags

NGSS.MS-PS1-2

The circuit has three lightbulbs and a bell. Which procedure will result in the green bulb operating, the bell producing a sound, and only one blue lightbulb operating?

• Close Switch 1 and leave Switches 2 and 3 open

• Close Switches 2 and 3, and leave Switch 1 open

• Close Switches 1, 2, and 3

• Leave Switches 1, 2, and 3 open

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

The picture below shows a spoon in a glass of water. Why does the spoon appear bent?

• the light waves are refracted as they change speed when they pass from the water to the air

• the light waves are reflected as they change speed when they pass from the water to the air

• the light waves are absorbed when they pass from the water to the air

• the light waves bounce off of the water

Tags

NGSS.MS-PS4-2

A student designed the circuit below. Which switches should the student close to produce ight energy only?

• Switch 1 and Switch 3

• Switch 1, Switch 2, and Switch 3

• Switch 1 and Switch 4

• Switch 2, Switch 3, and Switch 4

Tags

NGSS.MS-ETS1-2

What is the first step in the scientific method?

• Forming a hypothesis

• Conducting an experiment

• Making an observation

• Analyzing data

What is the first step of the Scientific Method?

• Formulating a hypothesis

• Conducting an experiment

• Making an observation

• Analyzing the data

Tags

NGSS.MS-PS2-2

Which of the following best defines science?

• A collection of unchangeable facts about the natural world

• The study of the natural world through observation, identification, description, experimental investigation, and theoretical explanations

• A belief system based on assumptions about the natural world

• A method for proving theories beyond doubt

Tags

DOK Level 1: Recall

What is a hypothesis?

• A guess about the outcome of an experiment.

• A statement that can be tested and is based on observations and previous knowledge.

• A summary of the results of an experiment.

• A law that explains a natural phenomenon.

What is a common method for scientists to communicate their research findings?

• Through artistic performances

• By publishing in scientific journals

• By creating infomercials

• Through political debates

Tags

DOK Level 1: Recall

If I study for my scientific method quiz, then I will have a better test score. What is the dependent variable?

• Scientific Method

• Studying

• Independent variable

• Test score