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Chemistry Questions - All Grades

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Grade 5 Properties of Matter
The amount of matter in an object is its
  1. weight
  2. density
  3. volume
  4. mass
Grade 5 Matter
Volume is
  1. the amount of space that an object takes up
  2. the amount of matter in a solid, liquid, or gas
  3. the material through which an electrical charge can pass
  4. a strong resistor that can stop most electrical charges
Grade 6 Properties of Matter
What is the density?

Mass = 120 g
Volume = 96 mL
  1. 1.52 g/mL
  2. 0.33 g/mL
  3. 1.20 g/mL
  4. 1.25 g/mL
Grade 5 Properties of Matter
A solid is
  1. a substance that does not have a definite shape or volume
  2. a substance with a definite volume, but no definite shape
  3. a substance with a definite shape and volume
  4. a substance whose particles glide past one another
Grade 8 Acids and Bases
Grade 9 Biochemical Pathways
Grade 9 Macromolecules
How do enzymes help chemical reactions to occur?
  1. They speed up reactions by adding more substrates to react with enzymes
  2. They slow down reactions by increasing the activation energy
  3. They speed up chemical reactions by lowering the activation energy required
  4. They slow down reactions by changing the overall temperature of the reaction
Grade 10 Atomic Structure
Which of the following pairs shows isotopes of the same element?
  1. [math]""_6 ^12C and ""_6 ^12C [/math]
  2. [math]""_6 ^14C and ""_7 ^14N [/math]
  3. [math]""_6 ^14C and ""_6 ^12C [/math]
  4. [math]""_6 ^14C and ""_6 ^14C^-4 [/math]
Grade 9 Biochemical Pathways
Which of the following are typically products of cellular respiration?
  1. carbon dioxide and water
  2. oxygen and carbon dioxide
  3. water and glucose
  4. glucose and oxygen
Grade 9 Properties of Matter
Which one of the following substances will float in water? The density of water is [math]1.0 g//cm^3[/math]
  1. [math]"density of gold" = 19.3 g//cm^3[/math]
  2. [math]"density of milk" = 1.03 g//cm^3[/math]
  3. [math]"density of ice" = 0.92 g//cm^3[/math]
Grade 9 Biochemical Pathways
Which of the following are typically products of photosynthesis?
  1. oxygen and carbon dioxide
  2. glucose and oxygen
  3. carbon dioxide and water
  4. water and glucose
Grade 9 Biochemical Pathways
Which of the following correctly describes the purpose of photosynthesis?
  1. To release energy by decomposing glucose
  2. To store energy in the form of carbon dioxide
  3. To use sunlight energy to make sugars
  4. To create water for hydration
Grade 8 Biochemical Pathways
Which of the following statements correctly describes a primary distinction between respiration and photosynthesis?
  1. Photosynthesis needs oxygen, while respiration needs water
  2. Photosynthesis needs carbon dioxide, while respiration needs oxygen and sugars
  3. Photosynthesis makes oxygen, while respiration makes water
  4. Photosynthesis makes water, while respiration makes carbon dioxide
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