Science 9Name: ______

Unit B: Chemistry

Chapter 4: People of all cultures investigate matter according to various properties

AE9.3 I CAN demonstrate an understanding of the classification of pure substances (elements and compounds), including the development and nature of the Periodic Table. / Date Completed/ Understood:
I CAN use a flow chart to illustrate the differences between elements, compounds and mixtures.
I CAN classify pure substances as elements or compounds.
I CAN select and integrate information from various print and electronic sources to construct visual representation of given elements.

4.1Investigating Matter

Use textbook pages 121-127 to answer the following questions:

  1. How long ago were fireworks invented? ______
  1. Where were they invented? ______
  1. Label the following diagram with the four elements believed by the Nakawe people to make up the physical world.
  1. Which element is responsible for the shaping and creation of Mother Earth? ______
  1. How is a mechanical mixture different from a solution?
  1. Is a compound, such as water, a pure substance or a mixture?______
  1. How do you know?
  1. What are the four common states of matter that scientists use to describe matter in the universe?
  1. Can a sample of matter exist in two states at one time? Use an example to explain your answer.
  1. Classify each:

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Science 9Name: ______

Circle one:

  1. Homogeneous mixture
  2. Heterogeneous mixture
  3. Pure substance
  4. Why?

Circle one:

  1. Homogeneous mixture
  2. Heterogeneous mixture
  3. Pure substance
  4. Why?

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Science 9Name: ______

  1. What are two benefits of solution mining for potash (material containing mainly potassium chloride) over conventional mining of potash in Saskatchewan?

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Science 9Name: ______

Matter Classification

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Science 9Name: ______

AE9.1 I CAN distinguish between physical and chemical properties of common substances, including those found in household, commercial, industrial, and agricultural applications. / Date Completed/ Understood:
I CAN demonstrate knowledge of WHMIS standards by using proper techniques handling and disposing of lab materials.
I CAN investigate a common material and describe its physical properties.
I CAN group substances based on their physical and/or chemical properties.
I CAN distinguish between a physical and chemical change.
I CAN justify my reasons for concluding that a property of matter is either physical or chemical.
I CAN differentiate between properties and changes in matter, based on evidence.

4.2Physical and Chemical Properties

Use textbook pages 131-140 to answer the following questions:

  1. Use page 133-137 in your textbook and online resources to fill out the following chart:

Physical Property / Description / Example
Colour and lustre
Melting point
Boiling point
Density
Solubility
Ductility
Crystal shape
Conductivity
Hardness
Texture
Malleability
Magnetism
Chemical Property / Description / Example
Combustibility
Reactivity
Toxicity
  1. List 4 physical properties of each substance:
  2. Water

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Science 9Name: ______

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Science 9Name: ______

  1. Iron metal

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Science 9Name: ______

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Science 9Name: ______

  1. Baking soda (sodium hydrogen carbonate)

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Science 9Name: ______

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Science 9Name: ______

  1. What does a chemical property describe about a substance?
  1. Identify each of the following observations as evidence of either a physical change or a chemical change (circle one).
  1. A piece of copper is heated until it melts.Physical changeChemical change
  2. A silver spoon darkens when left in the air.Physical changeChemical change
  3. Paper burns in a candle flame.Physical changeChemical change
  4. A piece of plastic is stretched until it breaks.Physical changeChemical change
  5. Table salt melts at 801°C.Physical changeChemical change
  1. From the following list, indicate which would make good conductors (circle one).
  1. CopperGood Conductor Bad Conductor
  2. StyrofoamGood Conductor Bad Conductor
  3. IronGood Conductor Bad Conductor
  4. Woollen mittenGood Conductor Bad Conductor
  1. Identify each of the following as a statement that describes either a physical property or a physical change (circle one).
  1. Ice melts.PropertyChange
  2. Hydrogen is a colourless gas.PropertyChange
  3. You chop a carrot.PropertyChange
  4. Copper wire bends easily.PropertyChange
  5. The ruby slippers are red.PropertyChange
  1. What is an advantage of to the environment of making corn-based products?
  1. What is a disadvantage of to the environment of making corn-based products?
  1. Compare and contrast traditional medicines used by First Nations and Metis peoples and modern pharmaceutical drugs.

Similarities:

Differences:

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Science 9Name: ______

Traditional medicines

Modern pharmaceutical drugs

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