Classifying Matter

Which of the following describes something made of matter?

• Has mass

• Takes up space

• Has matter AND takes up space

• Takes up no space, and has no matter.

Which of the following is not an element?

• Copper (Cu)

• Aluminum (Al)

Match the following elements with their chemical symbol (you may use your periodic table if you have it).

• Fe

• Iron

• Zn

• Oxygen

• O

• Zinc

• Pt

• Platinum

• S

• Sulfur

Which of the following is an example of a chemical change?

• Rust forming on a car.

• Breaking a branch off a tree.

• Cutting bread into slices.

• Squeezing a lemon.

Reorder the following from LEAST dense to MOST dense.

• 1 pound of foam

• 1 pound of iron

• 1 pound of air

• 1 pound of water

Which of the following is an example of a physical change?

• Dissolving sugar into water.

• Cooking an egg.

• Burning a log.

• Separating hydrogen from oxygen in water.

How would you use the following material based on the given physical property: Aluminum is a lower density metal that can handle large amounts of stretching forces without breaking.

Answer explanation

Most materials we use today are chosen for their physical properties. For example: A bird's "downy" feathers are very light weight and trap air to insulate birds, so people have used them as insulation in coats, and as filling for pillows.

There will be a video that will contain numerous chemical reactions playing on the board. Identify as many signs as you can that there is a chemical reaction happening.

Explain how you would separate a mixture of sand and iron powder. Use full sentences and proper English.

Identify which of the following options below that are pure substances.

• Distilled water.

• Milk

• Air

• Soil