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WorksheetsUnit 9: Chemical Matter
Total questions: 42
Worksheet time: 21mins
What is the chemical compound known as salt to chemists?
Sodium bicarbonate
Sodium chloride
Chlorine dioxide
Sodium hydroxide
What are the chemical symbols for sodium and chlorine, the elements that make up salt?
Na and Cl
S and C
Na and Ci
So and Ch
How was salt traditionally obtained from seawater in ancient times?
By filtering the seawater
By chemical reactions
By letting the water evaporate
By mining underground
What is the main source of salt mentioned in the text?
River water
Seawater
Underground mines
Salt lakes
Why do we hardly think twice when using salt according to the text?
Because it is difficult to find
Because it is expensive
Because it is rare
Because it is plentiful and inexpensive
What is the traditional method of harvesting salt from the ocean called?
Ocean salt extraction
Solar salt production
Seawater evaporation technique
Salt crystal harvesting
Why is the Great Salt Lake much saltier than the ocean?
It has no outlet for water to flow out.
It is smaller than the ocean.
It is a man-made lake.
It receives less rainfall.
Which of the following is true about the Great Salt Lake?
It is suitable for fish and most other types of living things.
It is less salty than the ocean.
It is home to tiny brine shrimp.
It is the largest body of water on Earth.
When did commercial solar salt-making around the Great Salt Lake begin?
Before 1847
In 1847
In 1900
After 1900
What is the estimated amount of salt in the Great Salt Lake?
Nearly 5 million tons
Nearly 5 billion tons
Nearly 2.5 million tons
Nearly 2.5 billion tons
How much solar salt is extracted from the Great Salt Lake every year?
Roughly 25 million tons
Roughly 250,000 tons
Roughly 2.5 million tons
Roughly 5 million tons
Which elements is the salt from the Great Salt Lake rich in?
Sodium, chlorine, and carbon
Potassium, magnesium, and sulfur
Calcium, iron, and zinc
Sodium, potassium, and calcium
What is an element according to Trevor?
A type of molecule
The smallest amount of an element you can have
A building block of matter that can't be simplified
A combination of various atoms
What is an atom according to Trevor?
The smallest amount of an element you can have
A building block of matter that can't be simplified
A type of molecule
A combination of various elements
Where can one find a list of all the elements according to the text?
In a science textbook
On the wall in science class
On the big chalkboard in the ice cream shop
In the activity book
According to the ice cream analogy, what does one scoop of ice cream represent?
A molecule
A compound
An atom
The periodic table
What does the chalkboard with ice cream flavors represent in the analogy?
A recipe book
The periodic table of elements
A menu
A chemistry textbook
When two scoops of the same ice cream flavor are combined, what does this represent in the analogy?
A mixture
A compound
A molecule
An element
What is formed when two different flavors of ice cream are put together in a cone, according to the analogy?
A mixture
A compound
A molecule
An element
What is an element according to the text?
A type of molecule
A basic substance that is one of the building blocks of matter
A compound made up of different flavors
A property of a molecule
What is the smallest amount of an element that still has the properties of that element, as mentioned in the text?
A molecule
A compound
An atom
A periodic table
How many atoms are bonded together in a molecule, based on Alice's explanation?
One or more
Two or more
Three or more
Four or more
What is the meaning of the word evaporate?
to turn from a solid to a liquid
to turn from a liquid to a gas
to turn from a gas to a liquid
to turn from a liquid to a solid
What does the word "lamented" imply in the context it is used?
to express sorrow
to express happiness
to express tiredness
to express laziness
When someone says "Trevor’s eyes 'lit up'," is this a literal description?
Yes, it is literal.
No, it is a metaphor.
No, it is a simile.
No, it is an exaggeration.
What inference can we make about Alice’s feelings about science from the second excerpt?
She hates it.
She is confused by it.
It is her favorite subject.
It is okay but she prefers ice cream.
What is the purpose of expanding sentences with descriptive details, including adjectives and adverbs?
To make the sentences longer
To solve the case
To provide more information and make the sentences more interesting
To change the meaning of the sentences
Reduce the sentence to be as concise as possible: "The ice cream, soft and tingly on the tongue, made me sigh with pleasure as I devoured it."
The ice cream made me sigh with pleasure.
The ice cream was soft and tingly.
I devoured the ice cream.
The soft and tingly ice cream was devoured with a sigh of pleasure.
Reduce the sentence to be as concise as possible: "Salt, which is a fascinating compound, can be extracted in many ways, some of them from ancient times, while some are more modern."
Salt can be extracted in many ways.
Salt is a fascinating compound.
Salt extraction methods are ancient and modern.
Fascinating salt has been extracted for a long time.
Where should a comma be inserted in the sentence: "To be first in line Alice had to queue outside the parlor for a long time."
After "line"
After "Alice"
After "queue"
After "parlor"
Where should a comma be inserted in the sentence: "Realizing she was annoyed Trevor let Alice finish her sentence."
After "Realizing"
After "annoyed"
After "Trevor"
After "Alice"
Where should a comma be inserted in the sentence: "Putting her hand in her pocket Alice said, 'I’ll buy this.'"
After "pocket"
After "her"
After "Alice"
After "said"
Where should a comma be inserted in the sentence: "You think I’m talking too much don’t you?"
After "think"
After "much"
After "talking"
After "you"
Where should a comma be inserted in the sentence: "Yes I suppose I do."
After "Yes"
After "suppose"
After "I"
No comma is needed
Where should a comma be inserted in the sentence: "It wouldn’t help if I taped my mouth shut would it?"
After "help"
After "taped"
After "shut"
After "mouth"
Where should a comma be inserted in the sentence: "No I don’t think that’s a good idea."
After "No"
After "don’t"
After "think"
No comma is needed
Use the events below to construct a sentence in the past perfect tense: "Before we started the lesson, we had already ___ about chemistry."
learned
learn
learning
learns
Write the correct word to complete the sentence, adding the suffix -ment: "Solving the case was a great ___."
amazement
achievement
alignment
excitement
Write the correct word to complete the sentence, adding the suffix -ment: "People had different views on the culprit. It caused great ___."
agreement
disagreement
judgement
enforcement
Complete the sentence: "I applied three times before I was given ______ to join the fossil dig."
admission
permission
remission
emission
Complete the sentence: "I ______ that I didn't understand what she was talking about."
admitted
emitted
transmitted
permitted
Complete the sentence: "Your ______, should you choose to accept it, is . . ."
mission
missile
admission
transmission
