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Eighth Grade (Grade 8) Chemistry Questions

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Grade 8 Periodic Table and Elements
Grade 8 Periodic Table and Elements
Grade 8 Properties of Matter
Ductility is the ability for a metal to be
  1. rolled into sheets
  2. pulled into wires
  3. pressed into angles
  4. melted into molds
Grade 8 Periodic Table and Elements
Grade 8 Periodic Table and Elements
Grade 8 Biochemical Pathways
What is the process where cells obtain energy from sugar molecules?
  1. biotic
  2. nitrogen cycle
  3. respiration
  4. food chains
Grade 8 Periodic Table and Elements
Grade 8 Periodic Table and Elements
Grade 8 Periodic Table and Elements
Which characteristic is typical of a solid nonmetal?
  1. good conductor of heat
  2. good conductor of electricity
  3. brittle
  4. shiny
Grade 8 Acids and Bases
The table shows the pH of four substances.
pH Values
SubstancepH
Blood7.3
Orange Juice4.0
Ammonia11.0
Milk6.5

Which lists the substances from least to most acidic?
  1. ammonia, blood, milk, orange juice
  2. orange juice, milk, blood, ammonia
  3. ammonia, milk, blood, orange juice
  4. orange juice, blood, milk, ammonia
Grade 8 Properties of Matter
States of matter are determined by....
  1. light
  2. breaking
  3. plasma
  4. temperature
Grade 8 Properties of Matter
Grade 8 Biochemical Pathways
What are the products of photosynthesis?
  1. water (H2O) and glucose (C6H12O6)
  2. glucose (C6H12O6) and carbon dioxide (CO2)
  3. carbon dioxide (CO2) and water (H2O)
  4. glucose (C6H12O6) and oxygen (O2)
Grade 8 Biochemical Pathways
Which of the following is TRUE statement about cellular respiration?
  1. Cellular respiration converts energy directly from the sun into energy stored in chemical bonds
  2. Cellular respiration cannot occur without sunlight
  3. Cellular respiration occurs in plant cells and in animal cells
  4. Cellular respiration is not a cycle with photosynthesis
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