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Search Results for system - All Grades

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Grade 4 Simple Machines
Crystal must lift a bucket of water 1 meter off the ground. She may lift the bucket herself or use the pulley system shown below. Which will require less effort to lift the bucket?
Pulley System
  1. Crystal lifting the bucket on her own
  2. Crystal using the pulley system to lift the bucket
  3. Crystal must use the same effort if she lifts the bucket or uses the pulley system
Grade 8 Planetary Motion
Which statement is true about the solar system diagram shown?
Solar System
  1. it shows the geocentric model
  2. it shows the heliocentric model
  3. it shows the Ptolemaic system
  4. it shows the ancient Greek model
Grade 7 Skin, Skeleton, and Muscles
Which body system is shown in the diagram?
Nervous System
  1. urinary
  2. nervous
  3. endocrine
  4. circulatory
Grade 6 Inner Planets
Grade 4 Outer Planets
Grade 10 Nervous and Endocrine Systems
A biology textbook shows the diagram below. Which caption would most likely accompany the diagram?
Nervous System
  1. The Human Brain
  2. The Human Spinal Column
  3. The Central Nervous System
  4. The Peripheral Nervous System
Grade 9 Respiration, Digestion, and Excretion
Which process occurs primarily by structures A and B in the diagram?
Digestive System
  1. chemical digestion
  2. nutrient absorption
  3. mechanical digestion
  4. peristaltic movement
Grade 9 Respiration, Digestion, and Excretion
Grade 9 Respiration, Digestion, and Excretion
What does the respiratory system help to do?
  1. Helps digest food
  2. Helps stop bleeding
  3. Helps you fight off lung cancer
  4. Helps oxygen get into body/blood
Grade 8 Human Reproduction
Grade 10 Skin, Skeleton, and Muscles
Grade 10 Skin, Skeleton, and Muscles
Grade 10 Skin, Skeleton, and Muscles
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