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Science
9th -
12thgrade
Week 1 Recap: Properties of Matter, Substances and Mixtures
20 questions
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- 1. Multiple Choice
Imagine you are in a science lab. You have four substances in front of you: Aluminium (Al), Carbon Dioxide (CO2), Nitrogen (N), and Sand. Which one of these is a compound?
Aluminium (Al)
Carbon Dioxide (CO2)
Nitrogen (N)
Sand
- 2. Multiple Choice
How would you know if a solid is a pure substance?
It will melt at a range of temperatures.
It will melt at a single temperature.
It will boil at a range of temperatures.
It will boil at a single temperature.
- 3. Multiple Choice
A chemist is working in a lab and creates a model. This model represents a(n) _______________.
Mixture of Elements
Mixture of Compounds
Mixture of Compounds and Molecules
Mixture of Compounds and Elements
- 4. Multiple ChoiceA pure substance that cannot be broken down into other substances by chemical or physical means.compoundatommixtureelement
- 5. Multiple Choice
Ms Lenny is at the beach and she accidentally drops her bag of salt into the sand. She now has a mixture of sand and salt.
Which option below can she use to retrieve the sand from the mixture?
filtration only by pouring mixture of sand and salt through filter paper
dissolving only by adding water to mixture
dissolving first then use filtration
dissolving first then use evaporation
- 6. Multiple Choice
Which of the following is a method of separating solutions?
hand separation
filtering
screening
evaporation
- 7. Multiple Choice
Oil and Vinegar are a ___________.
Heterogeneous Mixture
Solution
A compound
The base of Italian dressing
- 8. Multiple Choice
An Element (and brothers) chemically bonded with a different type of element. The Element became a __________________________.
compound
mixture
solution
group
- 9. Multiple Choice
This type of matter can be separated by physical means.
Mixtures
Pure Substances
Elements
Compounds
- 10. Multiple Choice
Wood burning is an example of ___________.
physical intensive propertyphysical extensive propertychemical changePhysical change - 11. Multiple Choice
Physical properties of a substance include _________.
color and odormelting and boiling pointsdensityall of the choices are correct - 12. Multiple Choice
Water and methane are examples of ______________.
ElementsSolutionsCompoundsMixtures - 13. Multiple Choice
The ability to rust is a _____________ property.
Physical
Chemical
- 14. Multiple Choice
Baking soda combines with vinegar to create bubbles of carbon dioxide gas.
physical change
chemical change
- 15. Multiple Choice
When mixing milk and vinegar, a white, chunky, solid substance is formed. What has occurred?
Physical change: state of matter
Chemical change: production of a solid
Physical change: freezing
Chemical change: rust
- 16. Multiple Choice
Which of the following is NOT an example of chemical change?
Milk turning sour
Burning wood
Breaking a pencil
Metal turning rusty
- 17. Multiple Choice
The melting of wax is an example of a ____________ change.
chemical
physical
- 18. Multiple Choice
If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?
Filter
Screen
Magnet
Evaporation
- 19. Multiple Choice
Name the separation technique
Distillation
Crystallisation
Evaporation
Condensation
- 20. Multiple Choice
What causes ice to melt into water?
physical properties
chemical energy
temperature
- Answer choicesTagsAnswer choicesTags