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Sixth Grade (Grade 6) Chemistry Questions

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Grade 6 Matter
Evaporation is when                                                                 .
  1. a substance changes from a liquid into a solid material.
  2. a substance changes from a liquid to a gas (or vapor) naturally.
  3. a substance changes from a gas (or vapor) into a liquid.
Grade 6 Matter
What are states of matter?
  1. The temperature at which a liquid boils and becomes a gas.
  2. A law that states that for a fixed amount of gas at a constant temperature, the volume of the gas increases as its pressure decreases and the volume of the gas decreases as its pressure increases.
  3. A term used to describe a physical or chemical change in which energy is given of.
  4. The physical forms in which a substance can exist; includes solid, liquid, gas, and plasma.
Grade 6 Matter
What is sublimation?
  1. a substance used in a chemical reaction.
  2. the process by which particles leave a liquid and become a gas.
  3. the process by which a solid changes directly into a gas.
  4. a substance made by a chemical reaction.
Grade 6 Thermodynamics
Compared with the Pacific Ocean, a cup of hot chocolate has                                              .
  1. more thermal energy and a higher temperature.
  2. less thermal energy and a higher temperature.
  3. more thermal energy and a lower temperature.
  4. less thermal energy and a lower temperature.
Grade 6 Properties of Matter
Molecules in this phase of matter are tightly packed together.
  1. Solids
  2. Liquids
  3. Gases
Grade 6 Properties of Matter
Which change in state is illustrated?
Particle State - Solid[math]rarr[/math]Particle State - Liquid
  1. melting
  2. freezing
  3. evaporation
  4. condensation
Grade 6 Properties of Matter
                is the measure of how much matter an object has.
  1. Weight
  2. Gravity
  3. Mass
  4. Speed
Grade 6 Properties of Matter
Which change in state is illustrated?
Particle State - Liquid[math]rarr[/math]Particle State - Gas
  1. melting
  2. freezing
  3. evaporation
  4. condensation
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 6 Atomic Structure
Positively-charged particles are called                .
  1. Protons
  2. Neutrons
  3. Electrons
  4. Electrolytes
Grade 6 Acids and Bases
You can determine the concentration of acids or bases in a solution by using
  1. the pH scale.
  2. a salt.
  3. the periodic table of elements.
  4. a particle accelerator.
Grade 6 Atomic Structure
A(n)                 is the smallest part of matter.
  1. atom
  2. element
  3. liquid
  4. ion
Grade 6 Periodic Table and Elements
The sum of the number of protons and neutrons results in an atom's approximate                .
  1. atomic number
  2. atomic mass
  3. electrons
  4. pH scale
Grade 6 Matter
What causes changes in the state of matter?
  1. Physical properties
  2. Chemical energy
  3. Temperature
Grade 6 Molecules and Compounds
What does [math]C_2O_5[/math] mean?
  1. 2 carbon atoms and 5 oxygen atoms
  2. 3 carbon atoms and no oxygen atoms
  3. 4 carbon atoms and no oxygen atoms
  4. 5 carbon atoms and 2 oxygen atoms
Grade 6 Properties of Matter
What are the four states of matter?
  1. color, shape, size, and density
  2. solid, liquid, vacuum, and plasma
  3. heat, temperature, length, and mass
  4. solid, liquid, gas, and plasma
Grade 6 Properties of Matter
                  results in a new substance and it cannot be reversed by physical means.
  1. Chemical change
  2. Physical change
  3. Physical property
  4. Chemical property
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