Grade 3 Science Practice Test: Measuring Mass, Volume and Temperature
- Measuring Mass, Volume and Temperature
- 10 questions
- 13 minutes
Ten questions on choosing the right tool and unit to measure mass, volume and temperature. Tip: grams and kilograms are for mass, milliliters and liters are for volume.
Tap an option to mark your answer. You can change your mind, or tap the same option again to leave the question blank. The correct answers and explanations appear when you finish the test.Tap an option to answer; tap it again to leave the question blank.
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Question 1
Which tool should you use to find the mass of an apple?
Correct answer: C
A pan balance compares the apple with known masses, so it measures mass in grams. A ruler measures length and a thermometer measures temperature.
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Question 2
Which unit is used to measure the volume of a liquid, such as juice in a glass?
Correct answer: A
Milliliters (mL) and liters (L) measure liquid volume. Grams measure mass, centimeters measure length.
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Question 3
At what temperature does pure water freeze on the Celsius scale?
Correct answer: D
On the Celsius scale water freezes at 0 °C and boils at 100 °C. The number 32 is the freezing point on the Fahrenheit scale, not Celsius.
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Question 4
A graduated cylinder holds 50 mL of water. Ben drops a small rock in, and the water rises to 65 mL.
What is the volume of the rock?
Correct answer: B
The rock pushes the water up by the space it takes: 65 mL - 50 mL = 15 mL. Answering 65 mL counts the water too.
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Question 5
A pan balance has a toy car on the left pan and a wooden block on the right pan. The left pan is lower than the right pan.
What does this show?
Correct answer: B
On a pan balance, the side with more mass sinks lower. The balance tells you about mass, not about which object is bigger.
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Question 6
An ice cube has a mass of 20 grams. It melts in a closed cup, and none of the water spills or dries up.
What is the mass of the water?
Correct answer: C
Melting changes ice into liquid water, but the amount of matter stays the same. So the water still has a mass of 20 grams.
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Question 7
Which object would you most likely measure in kilograms?
Correct answer: D
A kilogram is 1,000 grams, which fits heavier things like a bicycle. A paper clip, a grape and a pencil are light enough to measure in grams.
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Question 8
Which temperature is most likely for a glass of milk that just came out of a refrigerator?
Correct answer: A
A refrigerator keeps food cold, only a few degrees above freezing, so about 4 °C fits. 40 °C would be warmer than your body.
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Question 9
A steel ball and a foam ball are exactly the same size.
Which statement is true?
Correct answer: B
Same size means same volume. Steel packs much more matter into that space than foam, so the steel ball has more mass.
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Question 10
Two students measure the same table. One says it is "6 hands long." The other says it is "8 hands long."
What should they do to get results they can compare?
Correct answer: D
Hands are different sizes, so the numbers do not match. A meter stick gives the same units for everyone, so results can be compared and checked.
Questions you leave blank are not counted as wrong.
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