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Tenth Grade (Grade 10) Science Questions

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Grade 10 Scientific Methods and Applications
A(n)                 is an explanation or representation of something that cannot be seen.
  1. element
  2. model
  3. phase
  4. specimen
Grade 10 Molecules and Compounds
Water acts as a solvent of ionic compounds because                                                    .
  1. water molecules are polar
  2. water takes the shape of its container
  3. water is found in three states of matter
  4. water is a liquid over a wide range of temperatures
Grade 10 Food Chains and Webs
All plants and animals depend on energy from the                .
  1. ocean.
  2. biosphere.
  3. Sun.
  4. biome.
Grade 10 Reactions
In what type of reaction does one reactant form two or more products?
  1. single replacement
  2. decomposition
  3. synthesis
  4. double replacement
Grade 10 Cell Structure and Function
A group of similar cells carrying out a job is a(n)
  1. tissue.
  2. organ.
  3. organ system.
  4. organism.
Grade 10 Cell Structure and Function
Which phase of mitosis comes immediately before the phase represented in the image?
Cell Telophase
  1. anaphase
  2. prophase
  3. telophase
  4. metaphase
Grade 10 Forces and Motion
Friction occurs                                                                           .
  1. in all movements in every condition
  2. whenever there is movement where matter comes in contact with other matter
  3. only in movement inside an atmosphere
  4. in all situations, even if there is no movement present
Grade 10 Macromolecules
Which macromolecule holds genetic information?
  1. nucleic acids
  2. carbohydrates
  3. lipids
  4. proteins
Grade 10 Scientific Method
If carrots are eaten daily, then there will be an improvement in vision. Based on this hypothesis, what is the independent variable?
  1. improvement in vision
  2. carrots eaten
  3. people wearing glasses
  4. preparation of carrots
Grade 10 Thermodynamics
Which phase change involves a solid directly changing into a gas?
  1. Deposition
  2. Sublimation
  3. Condensation
  4. Evaporation
Grade 10 Cell Structure and Function
Which organelle of a plant cell is most affected by direct sunlight?
  1. cell wall
  2. chloroplasts
  3. cell membrane
  4. vacuoles
Grade 10 Tectonics
This theory states that Earth's crust and rigid upper mantle are broken into enormous slabs which move in different directions.
  1. tectonic plate theory
  2. seafloor spreading theory
  3. the theory of Pangaea
  4. the floating Earth theory
Grade 10 Reactions
To balance a chemical equation, you may adjust the
  1. coefficients.
  2. subscripts.
  3. formulas of the product.
  4. either of coefficients or subscripts.
Grade 10 Cell Structure and Function
Which statement accurately describes osmosis?
  1. The direction of the water flow is opposite of the gradient for the solute diffusion.
  2. The direction of the water flow is the same as the gradient for the solute diffusion.
  3. The movement of particles of solute is from high concentration to low concentration when water cannot cross the cell membrane.
  4. The movement of particles across a cell membrane uses energy derived from ATP.
Grade 10 Matter
Identify the isotopes in the figure.
  1. A and C
  2. B and C
  3. A, B, and D
  4. A, B, C and D
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