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Chemistry Questions - All Grades

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Grade 10 Matter
What is the formula to calculate density?
  1. Mass=Density/Volume
  2. Density=Mass/Volume
  3. Volume=Mass/Density
  4. Density=Volume/Mass
Grade 6 Properties of Matter
Which change in state is illustrated?
Particle State - Liquid→Particle State - Gas
  1. melting
  2. freezing
  3. evaporation
  4. condensation
Grade 5 Biochemical Pathways
What does photosynthesis produce?
  1. oxygen and glucose
  2. water and sugar
  3. oxygen and proteins
Grade 8 Matter
Which of the following is NOT a phase of matter?
  1. Gas
  2. Solution
  3. Liquid
  4. Solid
Grade 7 Solvents, Solutes, and Solubility
A solution in which water is the solvent is called a(n)                 solution.
  1. saturated
  2. aqueous
  3. nonpolar
  4. heterogeneous
Grade 9 Periodic Table and Elements
These are pure substances that cannot be broken down into other substances by physical and chemical means.
  1. Elements
  2. Atoms
  3. Compounds
  4. Isotopes
  5. Protons
Grade 8 Atomic Structure
Atoms consist of which of the following?
  1. Protons
  2. Molecules
  3. Neutrons
  4. Electrons
Grade 8 Periodic Table and Elements
In the modern Periodic Table, elements are arranged
  1. according to atomic mass.
  2. according to atomic number.
  3. in alphabetical order.
  4. according to the number of neutrons in their nuclei.
Grade 2 Matter
When a liquid changes into a solid, what is it called?
  1. freeze
  2. melt
  3. heat energy
  4. water cycle
Grade 2 Matter
What are the three major states of matter?
  1. solid, liquid, and gas
  2. solid, liquid, and wood
  3. solid, iron, and gas
  4. metal, wood, and paper
Grade 2 Matter
What is it called when matter changes from one state of matter to another?
  1. water cycle
  2. heat energy
  3. physical change
  4. matter
Grade 2 Matter
What is it called when a solid changes into a liquid?
  1. melt
  2. freeze
  3. heat energy
  4. water cycle
Grade 8 Matter
Sublimation is a change from a
  1. solid to a liquid.
  2. gas to a liquid.
  3. solid to a gas.
  4. liquid to a solid.
Grade 9 Reactions
The process by which chemical bonds are broken and formed is called a                        .
  1. chemical reaction
  2. decomposition
  3. displacement
  4. stoichiometric reaction
Grade 6 Matter
Which of the following descriptions depicts a liquid?
  1. Holds its shape, fixed volume
  2. Takes shape of its container and is the volume of the container
  3. Takes the shape of its container, free surface and fixed volume
Grade 8 Periodic Table and Elements
Which best describes oxygen?
  1. Oxygen is a halogen.
  2. Oxygen is a nonmetal.
  3. Oxygen is a noble gas.
  4. Oxygen is a rare earth element.
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