Science Test | Matter
* school1. Instructions
- Answer all questions
- Show all work for calculation questions
- Use proper units and significant figures where required
2. Section A: Knowledge & Understanding
2.1. Multiple Choice
- Which of the following best defines matter?
[ ]Anything that can be seen[ ]Anything that has mass and takes up space[ ]Anything that changes state[ ]Anything that is solid
- Which WHMIS symbol would indicate a substance that can easily catch fire?
[ ]Corrosive[ ]Biohazard[ ]Flammable[ ]Toxic
- Which state of matter has a fixed volume but no fixed shape?
[ ]Solid[ ]Liquid[ ]Gas[ ]Plasma
- Which property is quantitative?
[ ]Colour[ ]Odour[ ]Mass[ ]Texture
- Which group of elements is found in Group 18 on the periodic table?
[ ]Halogens[ ]Alkali metals[ ]Alkaline earth metals[ ]Noble gases
2.2. Short Answer
- Define a physical property and give one example.
- Define a chemical property and give one example.
- State the five postulates of the Particle Theory of Matter.
- What is the difference between an element and a compound?
- What does atomic number tell you about an atom?
3. Section B: Thinking
3.1. Short Answer
- Explain how temperature affects the density of most substances using the Particle Theory of Matter.
- Water is less dense as a solid than as a liquid. Explain why this is unusual compared to most substances.
- A student claims that breaking a piece of chalk in half is a chemical change. Do you agree or disagree? Explain your reasoning. Because all metals are conductive. This is how the periodic table works. We were not taught why.
3.2. Classify
- Identify whether each change is physical or chemical. Justify your answer. a) Ice melting in a glass : b) Rust forming on iron : c) Cutting a piece of paper : d) Baking a cake Chemical:
4. Section C: Application
4.1. Density Calculations
- A metal block has a mass of 54 g and a volume of 6 cm³. a) Identify the givens : b) Calculate the density c) Include correct units and significant figures .
- A liquid has a density of 2.5 g/mL and a volume of 40 mL. a) Calculate the mass b) Show your formula and work
4.2. Real-World Applications
- A cleaning product has an HHPS symbol showing a skull and crossbones. a) What type of hazard does this symbol represent? b) Name two safety precautions you should take when using this product.
- A student mixes sand and salt together. a) Is this a mechanical mixture or a solution? b) Explain how you know.
- An element is shiny, malleable, and a good conductor. a) Is this element a metal, nonmetal, or metalloid? b) Where would you expect to find it on the periodic table?
5. Elsewhere
5.1. References
5.2. In my garden
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