HHPhysical and Chemical, Counting atoms and PTable

Which of the following scenarios best illustrates a chemical change?

• Melting ice to form water

• Burning wood to form ash and smoke

• Dissolving sugar in water

• Crushing a can

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DOK Level 3: Strategic Thinking

Which of the following is a physical property of matter?

• Reactivity with acid

• Density

• Flammability

• Ability to rust

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DOK Level 3: Strategic Thinking

• 6

• 12

• 18

• 24

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DOK Level 3: Strategic Thinking

Which of the following elements is a metal?

• Oxygen

• Silicon

• Iron

• Sulfur

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DOK Level 3: Strategic Thinking

Which of the following elements is a nonmetal?

• Sodium

• Chlorine

• Aluminum

• Magnesium

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Which of the following elements is classified as a metalloid?

• Boron

• Calcium

• Helium

• Silver

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DOK Level 3: Strategic Thinking

A student observes that a piece of metal changes color when exposed to air. What type of change is this, and what evidence supports this conclusion?

• Physical change; the metal's shape remains the same

• Chemical change; the color change indicates a new substance is forming

• Physical change; the metal can be polished back to its original color

• Chemical change; the metal is melting

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Which property would you use to separate a mixture of iron filings and sulfur powder?

• Solubility

• Magnetism

• Density

• Boiling point

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DOK Level 3: Strategic Thinking

• 6

• 7

• 8

• 9

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DOK Level 3: Strategic Thinking

Which of the following is a characteristic property of metals?

• Brittle

• Poor conductor of electricity

• Malleable

• Dull

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DOK Level 3: Strategic Thinking