A
B
C
D
E
100
How are rocks classified?
- A by their color
- B by their shape
- C by the area in which they are found
- D by the processes by which they form
- D by the processes by which they form
100
Which of the following processes breaks larger rocks into smaller pieces?
- A contact with lava melts rocks
- B strong wind blows over the rocks
- C ice in the rocks freezes and expands
- D waves crash into the rocks
- C ice in the rocks freezes and expands
100
A sample of a mineral is rubbed on a piece of white tile. The color of the mark left on the tile is observed. This is a test for what property of minerals?
- A Streak
- B Color
- C Luster
- D Cleavage
- A Streak
100
How can the hardness of a mineral be determined?
- A Measuring the mineral
- B Observing the mineral
- C Heating the mineral
- D Scratching the mineral
- D Scratching the mineral
100
Which of the following best describes luster?
- A The reflection of light off an object.
- B The density of an object.
- C The mass of an object.
- D The texture of an object.
- A The reflection of light off an object.
200
Which of the following best explains why parts of Earth experience darkness during the night?
- A The parts of Earth that are in darkness are covered by clouds.
- B The part of Earth that is in darkness has rotated away from the sun.
- C The shadow of the moon is falling on the part of Earth that is in darkness.
- D Stars hide the sun for the part of Earth that is experiencing darkness.
- B The part of Earth that is in darkness has rotated away from the sun.
200
Why do different parts of Earth receive different amounts of sunlight each day?
- A Earth’s axis is tilted.
- B Earth’s gravity is weak.
- C Earth’s revolution speed increases during each day.
- D Earth’s distance from the sun changes during each day.
- A Earth’s axis is tilted.
200
How long does it take the Moon to revolve around Earth?
- A 7 days
- B 14 days
- C 21 days
- D 28 days
- D 28 days
200
Which would be the most harmful environmental change for a fish in a pond?
Responses
- A humans swimming in the pond
- B planting trees around the pond
- C children sailing boats in the water
- D waste from factories entering the water
- D waste from factories entering the water
200
All of the following are changes to an environment that could help an animal thrive EXCEPT-
- A More of the kind of plants the animal eats
- B Fewer predators that eat the animal
- C A shorter season during which to reproduce
- D Removal of animals that eat the same food
- C A shorter season during which to reproduce
300
In a forest habitat, a certain kind of tree suffers a disease, so trees of this kind fail to produce seeds. Which of the following describes a negative effect this might have on the forest habitat?
- A Other trees produce healthier seedlings since there is less competition
- B There could be a decrease in the population of animals that eat the seeds of this tree
- C Smaller plants that grow in the shade of these trees would grow much taller
- D These trees will grow more since they are not producing seeds and have more resources
- B There could be a decrease in the population of animals that eat the seeds of this tree
300
A highway is built in an area. This will most likely have which of the following effects on the organisms in the area?
- A An increase in the number of bird species in the forest
- B More animals will be born in the forest
- C The number of trees will increase.
- D Animals that move around might get run over.
- D Animals that move around might get run over.
300
Students remove all the trash from a field near their school. Which of the following observations provides the best evidence that the action of the students has had a positive effect on the health of the schoolyard ecosystem?
- A Tree species begin to grow
- B Rainfall amounts increase
- C The student population increases
- D Daily temperatures decrease
- A Tree species begin to grow
300
Which of the following could humans do to provide a positive impact on the environment?
(choose all answers that apply)
- A Recycle, reduce and reuse various materials
- B Take shorter showers to conserve water
- C Deforestation
- D Plant trees
- E Using plastic water bottles instead of reusable bottles.
A Recycle, reduce and reuse various materials
B Take shorter showers to conserve water
D Plant trees
300
Which of the following could humans do to prevent soil erosion in an ecosystem due to flooding?
- A Introduce burrowing animals
- B Change the type of soil
- C Plant grasses and shrubs
- D Remove the largest rocks
- C Plant grasses and shrubs
400
What is something humans could do to use fewer natural resources?
- A Reuse paper
- B Store water
- C Plant shrubs
- D Burn wood
A Reuse paper
400
Which of the following occurs due to the effects of wind?
- A A new island forms in the middle of an ocean
- B A plain becomes a deep canyon with steep walls
- C A sand dune shifts from one location to another
- D A mountain grows taller over a thousand years
- C A sand dune shifts from one location to another
400
Which would be considered a slow change in Earth’s surface?
- A weathering and erosion
- B landslides and weathering
- C erosion and a volcanic eruption
- D a volcanic eruption and landslides
A weathering and erosion
400
The rock layers pictured here have split and been shifted. What most likely caused this change?
- A River
- B Landslide
- C Volcano
- D Earthquake
D Earthquake
400
Which of the following best describes the process that forms metamorphic rocks?
- A Hot liquid rock cooling into a solid.
- B Magma rising from Earth's core.
- C Heat and pressure changing rock.
- D Layering sediments of different sizes.
- C Heat and pressure changing rock.
500
Which characteristics would provide the best evidence for classifying a rock as sedimentary?
- A Began forming millions of years ago deep in the Earth
- B Made of smaller pieces of rock that were compacted
- C Formed when rocks were heated then cooled quickly
- D Resulted from liquid rock that came from a volcano
B Made of smaller pieces of rock that were compacted
500
Which of the following best describes the process that forms igneous rocks?
A. This type of rock is formed from the cooling and solidification of molten materials.
B. Rocks of this type are formed at the Earth's surface through processes like erosion, deposition, and compaction.
C. These rocks are changed by heat, pressure, or chemical reaction.
A. This type of rock is formed from the cooling and solidification of molten materials.
500
Why does the Moon look different throughout the month?
- A The Moon changes color
- B The Moon has phases due to its orbit around Earth
- C The Moon spins on its axis
- D The Moon has its own light source
B The Moon has phases due to its orbit around Earth
500
How does the Moon receive its light?
- A From Earth's reflection
- B From the stars
- C From the Sun's reflection
- D From the Moon's core
- C From the Sun's reflection
500
What does the term "Waxing" mean in relation to Moon phases?
- A Shrinking
- B Growing
- C Disappearing
- D Changing color
B Growing