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Ninth Grade (Grade 9) Science Questions

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Grade 9 :: Scientific Method by sackjd
An investigator is interested in seeing how tall a certain species of plant will grow if it is kept under red light for a month. What would be valid hypothesis for this experiment?
  1. If the light is red, then the plant will grow.
  2. If the investigator uses pea plants, then there will be a lot of growth.
  3. If plants are grown under different colored lights then they will grow different heights.
  4. If a month passes, then the plant will grow under the red light.
Grade 9 :: Scientific Method by jlovering
Victoria grows the same bacteria in 20 petri dishes. She places 10 of the dishes in a container with a normal atmosphere. The remaining dishes she places in a container in which the oxygen level is double the normal level. She labels the first group "A" and the second group "B". Which of the following best describes the groups.
  1. Group A is the control group; Group B is the experimental group
  2. Group A is the experimental group; Group B is the control group
  3. Group A is the hypothesis; Group B is the theory
  4. Group A is the variable; Group B is the observation
Grade 9 :: Biochemistry by LBeth
[math]C_6H_12O_6 + 6O_2->6CO_2+6H_2O+en ergy [/math] is the balanced chemical equation for
  1. photosynthesis
  2. glycolysis
  3. cellular respiration
  4. Krebs cycle
Grade 9 :: DNA, RNA, and Genetics by meganber
Which of the following word describes the synthesis of RNA using a DNA
template?
  1. transcription
  2. translation
  3. photosynthesis
  4. respiration
Grade 9 :: Geomorphology by CaryBloomquist
A glacier will retreat if
  1. more ice accumulates than melts.
  2. it gains ice at the same rate that ice melts.
  3. more ice melts than accumulates.
  4. the ice melts slower than it accumulates.
Grade 9 :: Planetary Motion by jlovering
If the winter solstice occurs the first weekend we are out for winter break, what will also be true about that day?
  1. It will be the shortest day of the year
  2. The sun will rise at its most southeastern point
  3. The sun's zenith will be at its lowest point of the year
  4. All of the above
Grade 9 :: Magnetism and Electricity by jlovering
Complete the following statement:

If you increase the resistance in a series circuit,                               .
  1. the current will also increase
  2. the current will decrease
  3. the voltage will increase
  4. the voltage will decrease
Grade 9 :: Tectonics by CaryBloomquist
What is a fault?
  1. the point inside Earth at which an earthquake occurs
  2. the point on Earth's surface directly above the earthquake focus
  3. a fracture in Earth along which movement has occurred
  4. a fracture in Earth along which NO movement has occurred
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