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Tenth Grade (Grade 10) Science Questions

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Grade 10 Respiration, Digestion, and Excretion
The sweat glands, kidneys, and urinary bladder are part of the                   .
  1. digestive system
  2. respiratory system
  3. endocrine system
  4. excretory system
Grade 10 Tectonics
The fact that widely separated continents have similar fossils, similar mineral deposits, and similar rock formations tells scientists that these continents                                                         .
  1. probably formed at the same time in the same hemisphere.
  2. probably were connected in the past.
  3. probably were never connected in the past.
  4. will have the same four seasons at the same time.
Grade 10 Heat Transfer
The word "thermal" means                .
  1. atmosphere
  2. cold
  3. Earth
  4. heat
Grade 10 Bonds and Mixing
What type of bond holds one H2O (water) molecule together, giving it opposing charges?
  1. Ionic Bond
  2. Polar Covalent
  3. Nonpolar Covalent Bond
  4. Hydrogen Bond
Grade 10 Cell Structure and Function
The structures that synthesize proteins in cells are the
  1. ribosomes.
  2. Golgi apparatus.
  3. lysosomes.
  4. vacuoles.
Grade 10 Taxonomy
Vertebrates belong to phylum                .
  1. Chordata
  2. Animalia
  3. Fungi
  4. Protista
Grade 10 Cell Structure and Function
One difference between eukaryotes and prokaryotes is that
  1. prokaryotes are surrounded by a cell membrane and eukaryotes are not.
  2. prokaryotes have a nucleus and eukaryotes do not.
  3. eukaryotes have DNA and prokaryotes do not.
  4. eukaryotes have membrane-bound organelles and prokaryotes do not.
Grade 10 Scientific Method
A theory is a
  1. proposed explanation for an observation.
  2. summary of the results of many observations.
  3. procedure used to test a proposed explanation.
  4. well-tested explanation for a broad set of observations.
Grade 10 Waves and Sound
The energy of a photon is greatest for                  .
  1. visible light
  2. ultraviolet light
  3. infrared light
  4. X-ray radiation
Grade 10 Macromolecules
Amino acid sequence determines a protein's shape.
  1. True
  2. False
Grade 10 Periodic Table and Elements
Elements in Group 18 on the periodic table are known as                      .
  1. Alkaline earth metals
  2. the Noble Gases
  3. metalloids
  4. transition elements
Grade 10 Scientific Method
The one condition that is changed in an experiment is the
  1. independent variable.
  2. control.
  3. dependent variable.
  4. both a and b
Grade 10 Magnetism and Electricity
When one bulb goes out, the other bulbs remain lit in a(n)                 .
  1. open circuit
  2. closed circuit
  3. series circuit
  4. parallel circuit
Grade 10 Environmental Science
Wind, moving water, sunlight, and heat from Earth's interior are sources of
  1. alternative energy.
  2. geothermal energy.
  3. renewable energy.
  4. ocean thermal energy.
Grade 10 Universe
There are three fundamental points to the Big Bang theory. Which of the following is NOT one of them?
  1. The universe is expanding and has always been expanding.
  2. In the beginning, the universe was crammed into a space smaller then the period at the end of this sentence.
  3. The universe is cooling as it expands.
  4. The universe is accelerating at a constant rate as it expands.
Grade 10 Scientific Method
A factor in an experiment that can be changed is the
  1. cell.
  2. hypothesis.
  3. variable.
  4. dependent.
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