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Seventh Grade (Grade 7) Science Questions

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Grade 7 Circulatory and Immune Systems
Which group has an open circulatory system?
  1. annelid worm
  2. amphibian
  3. crustacean
Grade 7 Respiration, Digestion, and Excretion
How long is the esophagus?
  1. 5 inches
  2. 2 feet
  3. 25 centimeters
  4. 1 meter
Grade 7 Botany
Groups of unstacked thylakoids between grana are?
  1. reduction
  2. oxidation
  3. chlorophyll A
  4. lamellae
Grade 7 Anatomical Organization
The name of the tube located near the windpipe, which takes food from the throat to the stomach.
  1. large intestine
  2. small intestine
  3. esophagus
  4. liver
Grade 7 Anatomical Organization
Why is the blood that flows from the lungs to the heart bright red?
  1. It has oxygen in it.
  2. It has carbon dioxide in it.
  3. It has food coloring in it.
  4. It has waste in it.
Grade 7 Anatomical Organization
The "master gland" is known as the                .
  1. thyroid gland
  2. pancreas
  3. pituitary gland
  4. adrenal gland
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 Skin, Skeleton, and Muscles
A cartilage acts as a cushion to help in movement of the joint.
  1. True
  2. False
Grade 7 Circulatory and Immune Systems
Your heart is made from a clump of veins that are connected.
  1. True
  2. False
Grade 7 Oceanography and Hydrology
What does "hydro" mean?
  1. Water
  2. Away from, Out from
  3. To carry
  4. Under or Below
Grade 7 Cell Structure and Function
What part of the cell produces ribosomes and is usually seen as a dark spot in the nucleus?
  1. nuclear envelope
  2. chromatin
  3. nucleolus
  4. nuclear pore
Grade 7 Cell Structure and Function
The                 is the site of protein production.
  1. smooth ER
  2. rough ER
  3. nucleus
  4. nucleolus
Grade 7 Magnetism and Electricity
The amount of electricity that is flowing around a circuit is               .
  1. ammeter
  2. battery
  3. current
  4. altitude
Grade 7 Oceanography and Hydrology
What is the approximate density of the ocean surface?
  1. 1,027 kg/m3
  2. 1,030 kg/m3
  3. 1,033 kg/m3
  4. 1,034 kg/m3
Grade 7 Volcanoes
Mount Kilimanjaro is close to the equator, but it has permanent snow
  1. on the summit.
  2. on its plateau.
  3. at its base.
Grade 7 Respiration, Digestion, and Excretion
Which enzyme does the pancreas produce? (Select all that apply.)
  1. protease
  2. bile
  3. carbohydrase
  4. lipids
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