Unit 2 Quiz 1 - Signs of a Chemical Change

Quiz
•
Science
•
7th Grade
•
Medium
Standards-aligned
Dollyanne Green
Used 6+ times
FREE Resource
9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A(n) ______ is a molecule made up of 2 or more different elements.
atom
mixture
compound
element
Tags
NGSS.MS-PS1-1
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The smallest unit of an element that still has the same properties of that element is called a ____.
proton
atom
molecule
compound
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What happens in EVERY chemical change?
A gas is produced.
A temperature change occurs.
At least 3 substances combine
A new substance is formed.
Tags
NGSS.MS-PS1-5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Marcus folded a piece of paper to make an airplane. He commented " I caused a chemical change!" Which statement BEST describes Marcus' claim?
Marcus was correct because only a chemical change can create something new.
Marcus is right because folded paper can never go back to its original shape.
Marcus' claim is incorrect because folding paper doesn't cause the molecules to rearrange.
Marcus is incorrect because a gas is always produced during a chemical change.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the following signs was not observed when the magnesium burned?
A precipitate formed
Light was given off
Heat was released
An odor was produced
Tags
NGSS.MS-PS1-2
6.
MULTIPLE SELECT QUESTION
1 min • 2 pts
In the steel wool lab, what were the two reactants. (Select two)
steel wool
lighter
oxygen
thermal energy
Tags
NGSS.MS-PS1-2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Fizzing and bubbles are NOT signs of a chemical change, but they are evidence that which sign has occurred?
heat was released
light was given off
a gas was produced
a precipitate formed
Tags
NGSS.MS-PS1-2
8.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Agnus said washing clothes is a chemical change. Which sentence BEST describes Agnus'
claim?
Agnus is correct because bubbles are created which means a gas was produced.
Agnus is incorrect because air mix with the soap to form bubbles, but no new substance was created.
Tags
NGSS.MS-PS1-2
9.
OPEN ENDED QUESTION
5 mins • 1 pt
Answer the following question using the Claim, Evidence, & Reasoning model that we practiced this week.
Is burning steel wool a physical change or a chemical change & give evidence to support your claim.
Evaluate responses using AI:
OFF
Tags
NGSS.MS-PS1-2
NGSS.MS-PS1-5
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