Unit 1 Quiz-Review

Repeating an experiment and achieving the same results is crucial in science. Which term describes this process?

• inference

• observation

• replication

• hypothesis

When designing an experiment, which statement is false?

• If set up properly, it accurately tests your hypothesis

• A good experimental setup always proves the hypothesis true

• Stronger experimental designs make results more reliable

• It shows the method used to test your hypothesis

Tags

NGSS.MS-ETS1-3

NGSS.MS-ETS1-4

Three classmates planted seeds in different soil types (sand, clay, peat) and recorded observations for two weeks. Their teacher asks them to meet and compare their findings. What is the purpose of this meeting?

• To copy each other's work

• To discuss and evaluate their evidence

• To make sure they all have the same answer

• To decide whose experiment was best

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Students built a model of an aquifer and wanted to see how chemicals might move into it. Which setup would best demonstrate this?

• They placed soil below the rocks and added dye directly to the water

• They added dirt to the top of the hill and sprayed water to watch it wash downhill

• They put grass on top, sprinkled fertilizer (dye), and sprayed water to mimic rain

• They poured dyed water directly into the aquifer to watch it collect in the rock layer

Tags

NGSS.MS-ESS2-4

The students wanted to study the effects of a long drought on groundwater levels in their aquifer model. What should they do?

• Stop adding water and measure levels after a few weeks

• Use a space heater and bright light for an extended time, then measure levels

• Shine a strong light on the model for a month, then check the water level

• Stop adding water, shine a light during the day, then measure after some time

Tags

NGSS.MS-ESS2-4

NGSS.MS-ESS3-1

Sally and Sue test friction using a ramp with different surfaces (glass, carpet, foil, sandpaper). They ask: Do rougher surfaces create more friction? Which hypothesis is best?

• A smoother ramp surface will make the car move faster

• Heavier cars will roll faster than lighter cars

• Steeper ramps will make the car move faster

• Without oil, the car will move slowest on sandpaper

Which statement best describes science?

• A) A body of knowledge about the natural world

• B) Something that does not involve nature

• C) The process of learning how the natural world works

• D) Too difficult to explain because of many opinions

Tags

NGSS.MS-PS1-2

Which of the following is NOT true about new scientific theories?

• New theories are always better than old ones

• New theories are our best current explanations of the world

• New theories benefit from improved technology

• Old theories can be replaced by better explanations

Tags

NGSS.HS-LS4-2

One way scientists help in hospitals is to:

• Assist doctors during surgery

• Manage the hospital’s operations

• Care for patients after surgery

• Research the causes of diseases

A scientific theory is a well-supported, widely accepted explanation of nature. Which of these is an example of a scientific theory?

• Energy cannot be created or destroyed

• F = ma (force = mass x acceleration)

• For every action, there is an equal and opposite reaction

• Earth’s magnetic field is caused by fluid movement in its core

Tags

NGSS.HS-ESS1-2

NGSS.HS-LS4-1