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WorksheetsScience Composite Review
Total questions: 50
Worksheet time: 45mins
Objects that blow into a swimming pool or that are dropped into the pool by swimmers need to be removed. The objects include foam cups, keys, and coins. Which of the following explains a useful method for removing some of the objects?
The keys and coins are less dense than water, so they can easily picked off the bottom of the pool by divers.
The foam cups have the same density as water, so they can be crumbled up for removal by the pool filter
The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning net.
The keys and coins have the same density as water, so they can be washed away when the pool is drained.
Two wires carrying electricity can create a spark if they come too close together. This spark can start a fire. Wires carrying electricity are usually covered with plastic to keep them from starting a fire. Why does the plastic keep the electricity from starting the fire?
Plastic is a good insulator
Plastic can melt when heated
Plastic is softer that wire
Plastic conducts electricity
Which of these is NOT soluble in water?
oil
salt
honey
sugar
A teacher dropped a bolt into a container of maple syrup and asked the students to remove it without touching the maple syrup. At first they used a strong magnet but the bolt would not move. They finally poured the maple syrup into another container to get the bolt out. Which of these best describes some of the bolt's properties?
The bolt is magnetic and has the same density as the syrup
The bolt is nonmagnetic and more dense than the maple syrup
The bolt is nonmagnetic and less dense than the syrup
The bolt is magnetic and less dense than the maple syrup
If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?
Filter
Screen
Magnet
Evaporation
The mixture shown here -
Maintains its physical properties when combined
Dissolves after being stirred together
Will evaporate after a certain period of time
Cannot be separated into ingredients
The best way to separate trail mix would be:
filter
by hand
sieve
evaporation
Which object is NOT magnetic?
Aluminum Can
Iron Nail
Steel Bolt
Nickel coin
The diagram above shows one container with oil and water and another with oil and a cork. Which diagram below shows what most likely would happen if oil, water, and the cork were all put in the same container?
What energy form is being used?
Sound
Thermal
Light
Mechanical
What energy form is being used for the boy to eat?
Mechanical
Thermal
Light
Sound
What form of energy is being used when a person pushes heavy boxes across the floor?
Electrical energy
Mechanical energy
Thermal energy
Sound energy
A girl turned the light off and went to bed. She remembered she had accidentally left her glass of ice water on the counter. When she got up the next morning, the ice had melted. What form of energy caused the ice to melt?
Sound energy
Light energy
Thermal energy
Mechanical energy
Which form of energy is produced when a guitar string vibrates?
Sound energy
Electrical energy
Thermal energy
Light energy
A tv uses electrical energy to produce
sound and light
mechanical and electrical
electrical and thermal
This polar bear is happy because someone gave him a pumpkin to play with. But, this polar bear is sad because it looks like his head is no longer attached to his body. :( What property of light creates this optical illusion?
Refraction
Reflection
Transparency
Opaqueness
This material allows almost SOME of the light to pass through it. This material is:
Transparent
Translucent
Opaque
Transaction
These toys are blocking all of the light, creating black shadows on the wall. These toys block all of the light, because they are made of materials that are:
Transparent
Translucent
Opaque
Transaction
A straw sitting in a glass of water looks broken because light travels more slowly through the water than air. This is an example of ____________.
Reflection
Refraction
Absorbing
Transmitting
Ella figure out the light traveling between air and water is-
What happens to light passing through a hand lens that makes the image of the penny appear larger? The light is-
The picture shows a child standing in a swimming pool. Why does the lower part of the child appear so much different in size from the upper part? (5.6C)
The light rays that travel through water and then into air are refracted.
The light rays that travel through water and then into air are enlarged.
The light rays that travel through air and then into water are reflected.
The light rays that travel through air and then into water are reduced.
Light travels in straight lines until reflected by another object. Which illustration best shows the light being reflected?
Erosion
the movement of weathered material by wind, water, or ice (e.g. glaciers)
process by which weathered and eroded material is deposited by wind, water, and ice
process by which exposed rock is broken down by rain, frost, wind, or other elements of weather
a physical structure on Earth that occurs naturally
Deposition
the movement of weathered material by wind, water, or ice (e.g. glaciers)
process by which weathered and eroded material is deposited by wind, water, and ice
process by which exposed rock is broken down by rain, frost, wind, or other elements of weather
a physical structure on Earth that occurs naturally
Landform
process by which exposed rock is broken down by rain, frost, wind, or other elements of weather
process by which weathered and eroded material is deposited by wind, water, and ice
the movement of weathered material by wind, water, or ice (e.g. glaciers)
a physical structure on Earth that occurs naturally
The photograph shows a canyon in northern Arizona. Which of these best describes how this canyon was most likely formed?
Floods eroded the sandstone away from the canyon walls
Glaciers eroded the canyon rock as they melted and moved.
Ice wedged into cracks in the rock and weathered the canyon walls
Wind blew large rocks that smashed against the canyon walls.
A wide U-shaped valley is shown in photograph. This valley is most likely formed by -
Flash flooding
a glacier
a hurricane
melting snow
What is this landform?
delta
canyon
valley
sand dune
What is this landform?
valley
delta
canyon
sand dune
This landform is formed by
water erosion
weathering
deposition of sediments
glaciers
This landform is formed by
water erosion
wind erosion and deposition
glaciers
weathering
Several landforms are listed in the table below. The right hand side is blank. When completed, it will list major processes that create each landform. To which landform or landforms should the process deposition belong to?
Canyon only
Delta
Canyon and Sand dune only
Delta and sand dune only
Which statement best describes the processes of weathering and erosion?
Weathering and erosion are directly responsible for the breakdown of any type of rock into smaller particles and the carrying away of the loose sediments.
Weathering and erosion are directly responsible for depositing loose sediments on the bottom of the ocean, forming layers of sediment.
Weathering and erosion are directly responsible for the amount of water in a river that transports sediments to the sea.
Weathering and erosion are directly responsible for the transportation, deposition and compaction of loose sediments on the seafloor.
Erosion is one of the processes involved in the formation of Sedimentary Rock. Which of these best describes the process of erosion?
Rocks are broken into smaller pieces that remain in the same location.
Pressure compacts layers of sediment and turns them into rock.
Pieces of rock or soil are carried from one place to another.
Sediment grains fall to the bottom of a lake to form Sedimentary Rock.
Some students make a model to show one of the first steps in the formation of sedimentary rock. The students pour 2 centimeters of light-colored sand into a clear plastic box. Then they add 1 centimeter of gravel. Finally they pour 2 centimeters of dark-colored sand on top of the gravel. Which characteristic of sedimentary rock does this model best show?
Sedimentary rock is made of layers.
Sedimentary rock is cemented bits of rock.
Sedimentary rock is often limestone.
Sedimentary rock is common in Texas.
The model below shows layers of sediment on the floor of an ocean. Which of the following best explains how these layers can become rock over many years?
Sand in the sediment melts and turns into rock.
The weight of the water compacts the sediment into rock.
Changing water temperatures turn sand in the sediment into rock.
Pollution caused by humans turns the sediment into rock.
Sedimentary rocks form when broken bits of other rock are deposited and then –
buried and squeezed and cemented together.
melted by the heat of the Earth’s core.
completely dissolved in salt water in the ocean.
used by humans as a natural resource.
Several layers of sedimentary rock are illustrated. They are in the same order as when they first formed. Which layer formed first?
Rock Layer W
Rock Layer X
Rock Layer Y
Rock Layer Z
Which of the following is a process that creates the sediments that form sedimentary rock?
Wind, water, and ice breaking rock into smaller pieces
Heat from the earth melting rock below the surface
Volcanoes putting out lava that cools to form new rock
Continents pushing together to fold layers of rock
