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Tenth Grade (Grade 10) Science Questions

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Grade 10 :: Evolution by Drv00d00
During a study session about evolution, one of your fellow students remarks, "The giraffe stretched
its neck while reaching for higher leaves; its offspring inherited longer necks as a result." Which
statement is most likely to be helpful in correcting this student's misconception?
  1. Characteristics acquired during an organism's life are generally not passed on through genes.
  2. Spontaneous mutations can result in the appearance of new traits.
  3. Only favorable adaptations have survival value
  4. Disuse of an organ may lead to its eventual disappearance.
  5. If the giraffes did not have to compete with each other, longer necks would not have been passed on to the next generation.
Grade 10 :: Ecology by der1228
Grade 10 :: Evolution by MarcBeinder
A population of salamanders that live in a river require clear, fresh water to survive. A flood causes tons of sediment to be suspended in the river. Which of these MOST LIKELY will happen to the salamander population?
HINT : EVOLUTION
  1. the salamanders will adapt to life on land
  2. the salamanders will move to another river
  3. the salamanders will adapt to living in the muddy water
  4. the salamanders will decrease in number because of the water quality
Grade 10 :: Evolution by MarcBeinder
The papaya mealybug is a pest that poses a threat to many tropical plants. Which fate of the mealybug would result from the inability of the species to reproduce?
HINT : EVOLUTION
  1. The species would mutate
  2. The species would increase
  3. The species would become extinct
  4. The species would continue to thrive
Grade 10 :: Rocks by LBeth
Marcelo needs to identify the rock shown below.
Rock - Metamorphic - Quartzite
Which two properties should Marcelo examine to help him identify the rock?
  1. size and density
  2. density and texture
  3. color and composition
  4. texture and composition
Grade 10 :: Bonds and Mixing by teachchemistry
Given the equation below:
HCl + energy [math]rarr[/math] H + Cl
How can this equation be described?
  1. This reaction is endothermic, and the heat is released
  2. This reaction is exothermic, and the heat is released
  3. This reaction is exothermic, and the heat is absorbed
  4. The reaction is endothermic, and the heat is absorbed
Grade 10 :: DNA, RNA, and Genetics by PMISIAS
Polygenic traits are
  1. controlled by two or more genes
  2. controlled by one gene
  3. controlled by polygons
  4. controlled by at least 3 genes
Grade 10 :: Zoology by HomeSchooler1001
Grade 10 :: Matter by Ms_VThomas
Grade 10 :: DNA, RNA, and Genetics by MarcBeinder
What is the role of hydrogen bonds in the structure if DNA?
  1. to code for proteins
  2. to synthesize proteins
  3. to separate the strands
  4. to connect the base pairs
Grade 10 :: Periodic Table and Elements by Qalam
Sodium, mercury, argon, and neon are used in the production of lamps. There are fewer
safety guidelines regarding the handling of neon and argon than for mercury and sodium.
Which of the following best describes the elements within the group of the periodic table that contains neon and argon gas?
  1. Gaseous at room temperature and highly reactive with metals
  2. Solid at room temperature and mildly reactive with strong acids
  3. Gaseous at room temperature and mostly unreactive with metals
  4. Solid at room temperature and mostly unreactive with strong acids
Grade 10 :: Reactions by Qalam
Which of the following includes an example of a chemical property of an element?
  1. Aluminum is a solid at room temperature and is a poor thermal insulator.
  2. Sulfur is not shiny and is not malleable.
  3. Sodium is a solid at room temperature and reacts with other elements.
  4. Silicon is shiny and is a poor conductor of electricity.
Grade 10 :: Evolution by PMISIAS
How can temporal isolation lead to speciation?
  1. If two populations do not like each other, this may lead to the formation of a separate species
  2. If two populations reproduce in different ways, this may lead them to become separate species
  3. If two populations are separated by a geographic barrier, this will cause them to reproduce with other members of their own species which may them to become separate species
  4. If two populations reproduce at different times, they are unlikely to reproduce with each other which may cause them to become separate species
Grade 10 :: DNA, RNA, and Genetics by edukingdom
The molecule shown in the diagram shows what kind of structure?
DNA
  1. multi-strand
  2. ladder
  3. double helix
  4. double vertex
Grade 10 :: Waves and Sound by Qalam
As a distant star moves away from Earth, the light given off by the star has a measurably
lower frequency. What happens to the wavelength and energy of the photons of light when
the frequency becomes lower?
  1. The wavelength becomes longer, and the energy decreases.
  2. The wavelength becomes shorter, and the energy decreases.
  3. The wavelength becomes longer, and the energy increases.
  4. The wavelength becomes shorter, and the energy increases.
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