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Landforms & Earth's Surface
Matter & Energy
Force, Motion & Energy
Earth & Space
Organisms & Environments
100

Which natural force can create sand dunes? 

  • A) Wind
  • B) Earthquakes
  • C) Lightning
  • D) Gravity alone
  • A) Wind
100

Matter is made up of tiny particles called — 

  • A) rocks
  • B) atoms
  • C) liquids
  • D) gases
  • B) atoms
100

Light travels in — 

  • A) curved lines
  • B) zigzag lines
  • C) straight lines
  • D) circular patterns
  • C) straight lines
100

Day and night are caused by Earth —

  • A) moving around the Sun
  • B) spinning on its axis
  • C) getting closer to the Sun
  • D) stopping its movement
  • B) spinning on its axis
100

 In a food chain, energy comes from — 

  • A) the Moon
  • B) the Sun
  • C) rocks
  • D) water
  • B) the Sun
200

 A delta is formed when a river — 

  • A) freezes completely
  • B) deposits sediment where it meets a larger body of water
  • C) flows uphill
  • D) disappears underground
  • B) deposits sediment where it meets a larger body of water
200

Which of these is a physical property you can observe? 

  • A) Color
  • B) Smell
  • C) Hardness
  • D) All of the above
  • D) All of the above
200

When you look in a mirror, light is — 

  • A) absorbed
  • B) reflected
  • C) destroyed
  • D) created
  • B) reflected
200

 Fossil fuels like coal and oil came from — 

  • A) rocks and sand
  • B) ancient plants and animals
  • C) ocean water
  • D) volcanic as
  • B) ancient plants and animals
200

Animals like ducks have webbed feet to help them — 

  • A) walk on land
  • B) swim in water
  • C) climb trees
  • D) dig in dirt
  • B) swim in water
300

Canyons are most commonly formed by — 

  • A) wind blowing sand
  • B) ice freezing and expanding
  • C) water flowing and cutting through rock over time
  • D) earthquakes splitting the ground
  • C) water flowing and cutting through rock over time
300

 When you mix salt into water and it disappears, the salt has been — 

  • A) destroyed
  • B) dissolved
  • C) frozen
  • D) burned
  • B) dissolved
300

 A student rolls a ball down different ramp heights. This tests how ____ affects motion. 

  • A) color
  • B) force
  • C) temperature
  • D) time
  • B) force
300

Which natural forces can change Earth's surface over time? 

  • A) Wind and water only
  • B) Ice only
  • C) Wind, water, and ice
  • D) Only earthquakes
  • C) Wind, water, and ice
300

 Which organisms break down dead plants and animals in an ecosystem? 

  • A) Producers
  • B) Primary consumers
  • C) Decomposers
  • D) Secondary consumers
  • C) Decomposers
400

Which sequence correctly shows how a canyon forms over time? 

  • A) River flows → deposits sediment → creates canyon
  • B) Ice melts → river dries up → canyon appears
  • C) River flows → erodes rock → cuts deeper channel → canyon forms
  • D) Wind blows → sand accumulates → canyon develops
  • C) River flows → erodes rock → cuts deeper channel → canyon forms
400

A student adds lemon juice to water. What happens to the water's properties? 

  • A) Nothing changes
  • B) Only the color changes
  • C) The water becomes more acidic and may change taste
  • D) The water turns into a solid
  • C) The water becomes more acidic and may change taste
400

When light goes from air into water, it — 

  • A) stops moving
  • B) speeds up
  • C) bends or refracts
  • D) changes into sound
  • C) bends or refracts
400

The difference between weather and climate is that weather is ____ and climate is ____. 

  • A) hot, cold
  • B) short-term, long-term patterns
  • C) on land, in the ocean
  • D) predictable, unpredictable
  • B) short-term, long-term patterns
400

If a highway is built through a forest, what will most likely happen to animal populations? 

  • A) They will increase rapidly
  • B) Migration patterns may be disrupted
  • C) They will become larger
  • D) Nothing will change
  • B) Migration patterns may be disrupted
500

A student observes that sand dunes on one side of a hill are larger than those on the other side. This difference is most likely caused by — 

  • A) the time of day the dunes were measured
  • B) prevailing wind direction and speed on each side of the hill
  • C) the color of the sand on each side
  • D) the temperature difference between the two sides
  • B) prevailing wind direction and speed on each side of the hill
500

Which method would best separate a mixture of sand, salt, and iron filings? 

  • A) Use a magnet, then add water and filter
  • B) Heat the mixture until everything melts
  • C) Add water and stir vigorously
  • D) Freeze the entire mixture
  • A) Use a magnet, then add water and filter
500

A prism separates white light into a rainbow because different colors of light — 

  • A) have different temperatures
  • B) travel at different speeds through the prism
  • C) are made of different materials
  • D) come from different sources
  • B) travel at different speeds through the prism
500

Sedimentary rocks form when layers of sediment are compressed over time. This process requires — 

  • A) only heat
  • B) only pressure
  • C) pressure, time, and sometimes heat
  • D) rapid cooling
  • C) pressure, time, and sometimes heat
500

In a balanced ecosystem, if the population of primary consumers decreases significantly, what will most likely happen to the producers? 

  • A) Producer populations will decrease
  • B) Producer populations will increase due to less consumption
  • C) Producer populations will stay exactly the same
  • D) Producers will change into consumers
  • B) Producer populations will increase due to less consumption