Intro Unit Review

An observation is:

• A guess

• Information you collected using your 5 senses

• Something that might have happened

• Your opinion

Answer explanation

An observation is defined as information gathered through our five senses: sight, hearing, touch, taste, and smell. This distinguishes it from guesses, opinions, or possibilities, making the correct choice "Information you collected using your 5 senses."

Tags

NGSS.5-PS1-3

An inference is:

• a conclusion or explanation based on your observations

• something that is a fact

• something based ONLY on what you hear

• something based ONLY on what you taste

Answer explanation

An inference is a conclusion drawn from observations, not just facts or limited sensory experiences. The correct choice highlights that it involves reasoning based on what you see, hear, or experience.

Tags

NGSS.MS-LS2-4

NGSS.MS-PS1-2

Which of the following is NOT an observation?

• There is a child in the bathtub.

• There is an adult in the room.

• There is a toilet.

• The mom is upset with her son.

Answer explanation

The statement 'The mom is upset with her son' expresses an emotion or interpretation, rather than a direct observation. The other options describe observable facts.

Which of the following is an INFERENCE?

• There are footprints

• A clown threw a ball and broke the window

• There is a ball on the ground

• The window is broken

Answer explanation

The statement 'A clown threw a ball and broke the window' is an inference because it suggests a cause-and-effect relationship based on the evidence of the broken window, while the other options are mere observations.

Check all that apply: Which are OBSERVATIONS

• There is a dog

• There are 2 people on the side of the street

• The 2 people were in a car accident

• There is a stop sign

• There are 2 vehicles

Answer explanation

Observations are statements based on what can be seen or measured. 'There is a dog', 'There are 2 people on the side of the street', 'There is a stop sign', and 'There are 2 vehicles' are all direct observations.

True or False: A hypothesis can be incorrect

• True

• False

Answer explanation

True. A hypothesis is a proposed explanation that can be tested. It may be supported or refuted by experimental results, meaning it can indeed be incorrect.

Tags

NGSS.MS-LS1-5

True or false: You can repeat steps in the scientific method.

• True

• False

Answer explanation

True. The scientific method is iterative, meaning you can repeat steps like experimentation and observation to refine your hypothesis or gather more data.

CER stands for:

• Claim, Electricity, Robotics

• Chemistry, Evidence, Reasoning

• Claim, Evidence, Reasoning

• Communication, Evidence, Resonance

Answer explanation

CER stands for Claim, Evidence, Reasoning, which is a framework used to structure scientific arguments and explanations. The other options do not accurately represent this concept.

Tags

NGSS.MS-LS2-4

True or false: A testable question can contain opinion words

• True

• False

Answer explanation

False. A testable question should be objective and based on measurable evidence, not personal opinions. Including opinion words makes it subjective and not suitable for testing.

Which of the following can be used as evidence?

• Observations

• Notes

• Data

• All of the above

Answer explanation

All of the options—observations, notes, and data—can serve as evidence in various contexts, making 'All of the above' the correct choice.

Tags

NGSS.MS-LS2-4

NGSS.MS-PS3-5