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Seventh Grade (Grade 7) Science Questions

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Grade 7 Zoology
What is the smallest sea turtle?
  1. loggerhead
  2. leatherback
  3. Kemp's ridley
  4. green
Grade 7 Zoology
About how many insect species are there?
  1. 1,000
  2. 10,000
  3. 1,000,000
  4. 1,000,000,000
Grade 7 Zoology
Which animal is classified as a fish?
  1. starfish
  2. jellyfish
  3. sea horse
  4. whale
Grade 7 Zoology
Which fins can a fish use to swim backwards or "put on the brakes"?
  1. pectoral fins
  2. caudal fin
  3. dorsal fins
  4. None. Fish cannot swim backwards.
Grade 7 Cell Structure and Function
The storage spaces found within cells are
  1. chloroplasts.
  2. vacuoles.
  3. cellulose.
  4. nucleus.
Grade 7 Zoology
Which best describes the structure for gas exchange (breathing) in grasshoppers and other insects?
  1. book lungs, which are modified gills
  2. tracheal system with air sacs that lead into the body
  3. gills with a large surface area to absorb oxygen
  4. oxygen-absorbing skin on the insect legs
Grade 7 Taxonomy
The blue jay, Cyanocitta cristata, is most closely related to which bird?
  1. green jay, Cyanocorax yncas
  2. Eastern bluebird, Sialia sialis
  3. bluethroat, Luscinia svecica
  4. Steller's jay, Cyanocitta stelleri
Grade 7 Solvents, Solutes, and Solubility
Sterling silver contains 92.5% silver and 7.5% copper. Which substance is the solute?
  1. platinum
  2. silver
  3. copper
  4. solids do not form solutions
Grade 7 Oceanography and Hydrology
China's Yangtze River is the longest river in Asia. The Yangtze River drains water from almost one-fifth of China's land area. It starts from melting glacial water in the mountains of the Tibetan Plateau. Its waters ultimately drain into the East China Sea.

Which sentence describes the headwaters of the Yangtze River?
  1. China's Yangtze River is the longest river in Asia.
  2. The Yangtze River drains water from almost one-fifth of China's land area.
  3. It starts from melting glacial water in the mountains of the Tibetan Plateau.
  4. Its waters ultimately drain into the East China Sea.
Grade 7 Geomorphology
Landslides, mudflows, slump, and creep are all examples of                      .
  1. mechanical weathering
  2. runoff
  3. mass movement
  4. soil formation
Grade 7 Respiration, Digestion, and Excretion
One function of the pancreas is to
  1. perform mechanical breakdown.
  2. remove waste after absorption.
  3. absorb nutrients.
  4. reduce the acid in the small intestine.
Grade 7 Respiration, Digestion, and Excretion
The                 has the special ability to regenerate, or grow back when cut in half.
  1. brain
  2. liver
  3. esophagus
  4. small intestine
Grade 7 Anatomical Organization
What are the main functions of the skeleton?
  1. protection
  2. body shape
  3. movemnent
  4. all of these
Grade 7 Anatomical Organization
Which excretory organ eliminates water, dirt, and other waste by sweat?
  1. lungs
  2. liver
  3. kidneys
  4. skin
Grade 7 Anatomical Organization
What function do the kidneys perform?
  1. eliminate carbon dioxide
  2. supply oxygen to body cells
  3. remove urea and excess water
  4. play a roll in gas exchange
Grade 7 Periodic Table and Elements
Everything is made of elements.
  1. True
  2. False
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