Atomic Zoom-In

Who proposed the idea that all matter is made of tiny pieces called atoms?

• Albert Einstein

• John Dalton

• Isaac Newton

• Marie Curie

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How many types of atoms are currently known in the universe?

• 50

• 100

• 118

• 200

What is the chemical formula for ethyl butyrate?

• C6H12O2

• C5H10O2

• ZrO2

• CH4

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What gives substances their different properties?

• Different types and numbers of atoms that repeat

• The temperature of the substance

• The color of the substance

• The size of the substance

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What substance is added to orange juice to enhance its aroma?

• Isovaleric acid

• Ethyl butyrate

• Citric acid

• Sodium chloride

Why does isovaleric acid smell like sweaty gym socks?

• It has the same properties as ethyl butyrate.

• Its atomic structure differs slightly from ethyl butyrate.

• It is a solid at room temperature.

• It is made of water molecules.

What is the chemical formula for diamond?

• ZrO2

• C

• CO2

• CH4

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Which human-made substance resembles diamond?

• Cubic zirconia

• Quartz

• Graphite

• Salt crystals

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What is the chemical formula for cubic zirconia?

• C

• ZrO2

• NaCl

• H2O

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How are molecules in substances like air and water structured?

• They form extended networks.

• They exist as individual molecules not connected to their neighbors.

• They are connected in straight lines.

• They are made of single atoms.

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