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WorksheetsCAST Practice Test
Total questions: 56
Worksheet time: 1hrs 23mins
Which setup shows that a new substance formed when two substances were mixed?
Setup 1
Setup 2
SElect a sentence from the list that is the best evidence a new substance formed.
The amount of time the white substance takes to cloud everything in the beaker in setup 1
The white substance appearing whe mising two blue substances in setup 1
The difference in mass between the yellow substance and the blue substance in setup 2
The rapid sinking of the yellow substance to the bottom of the beaker in setup 2
Suggestion 1: Build homes with basements
Helpful
Not Helpful
Suggestion 2: Build homes near shoreline on the other side of the river
Helpful
Not Helpful
Suggestion 3: Build homes at least 1 meter above the ground using stilts
Helpful
Not Helpful
Whats the next step?
The team shows the design drawings to a classmate who will judge which design to use.
The team discusses what the design problem is and makes a new list of features for the new holder
The team reviews a new list of solutions and selects one solution to help solve a new design problem.
The team discusses each member's design and makes changes to one design that the team agrees to use.
Which 2 animals are adapted to deserts?
kangaroo rats
beavers
tortoises
frogs
If plants are removed...
There will be more food for the fish to eat.
There will be less Carbon Dioxide
There will be more Oxygen
There will be less Oxygen
What does adding fish food mean for the fish tank?
Plants will not need carbon dioxide from the fish.
Oxygen dissolved in the water provides food for the fish.
Fish food will end up dissolved in the water as food for the plants.
Fish do not get all necessary nutrients directly from the water or plants.
What may happen if too much food is added?
The fish tank will adapt to eat the extra fish food.
The fish in the tank will recycle the nutrient in the extra fish food.
Extra fish food that is uneaten will decrease the quality of the water.
A new type of decomposer will appear to break down the extra fish food.
Which book contains fair data about fish populations and why?
a
s
Which book contains fair data about fish populations in the lake and why?
Book 1: because customers paid a fee to go on a fishing tour of the lake.
Book 1: because people recorded how many fish can be caught during a tour.
Book 2: because a city paid a scientist to study fish and other living things in the lake.
Book 2: because populatins of fish were tracked over a period of time.
Trash made of plastic that gets into the lake _____________
can be extra food source for fish
can harm the fish and other living things
floats on the water and does not affect the fish
Plants and fish need clean water to _____________________
exchange gases with each other.
protect themselves from predators.
communicate with other living things.
The water for the system comes from rivers and surface runoff
Fish tank system
Lake system
The water for the system is provided by a faucet.
Fish tank system
Lake system
The temperature of the system stays about the same all the time.
Fish tank system
Lake system
The temperature of the system changes during different parts of the year.
Fish tank system
Lake system
Which best describes what most likely caused the loose soil?
Hill A erodes more slowly than Hill B
Hill A has fewer plants than Hill B.
Hill B has a steeper slope than Hill A.
Hill A receives less average rainfall than Hill B.
Select 3 observations:
Bubbles are produced
All the powder dissolves
The temperature increases
The solution changes color
The volume of the substance increases.
When released from which position was the marble moving the fastest upon colliding with the stopper?
Position 1
Position 2
Position 3
Position 4
Which location is best and why?
Location A: Since it will measure only the strongest movements from the volcano.
Location B: Since it will measure volcano movements closest to the city.
Location C: Since it wil measure movements along the river that separates the volcano from the city.
Location D: Since it will measure movements closest to the volcano.
The student places 10 pennies on the bridge and it breaks. Which would most likely need to be changed to improve the design? Pick 2 answers:
Increase the number of sheets of paper.
Increase the number of books on both sides.
Change the way the paper is folded.
Increase the number of books on one side.
Which best fits the empty box?
a mouse that eats matter in the form of seeds produced by grass.
a cat that eats the snakes which can decrease the grasshopper population.
microbes that break down dead organisms, releasing their matter to be reused by the grass.
a chicken farmer that scares away the hawk to keep from eating chickens.
What will most likely happen at 10 a.m.?
The shadow will be longer at 10 am than it was at 9am, and it's direction will be North.
The shadow will be shorter at 10 am than it was at 9am, and it's direction will be East.
The shadow will be shorter at 10 am than it was at 9am, and it's direction will be North.
The shadow will be the same length at 10 am than it was at 9am, and it's direction will be Northwest.
How does fur changing color help the hare to survive in the winter?
The white fur allows the hare to find more mates in order to have stronger babies with white fur.
The white fur allows the hare to find more food.
The white fur helps to keep it warm more than the brown fur.
The white fur helps it to camouflage and blend with the snowy environment in January.
Select 2 true statements:
Drones are more quiet and lower cost to study whales
The boat is lower cost and less harmful to the environment
The drone is more quiet and least harmful to the environment
The boat is lower cost and not quiet
What most likely is the effect of melting glaciers?
They make the oceans more salty.
They will cover some coastal lands with water.
They will decrease the amount of water in the atmosphere.
The animals from the north and south poles will move closer to the equator.
What other thing can give energy to the grass?
sunlight
grasshopper
farmers
hawk
This is a...
electromagnet
closed circuit
series circuit
parallel circuit
Most of earth's freshwater is...
frozen
groundwater
surface water
swamps
Most of earth's surface freshwater is found in...
rivers
groundwater
lakes
swamps
Pick 2 measurements to describe this pattern:
height of the father
air temperature of the park
weight of the girl
amount of time between each push
weight of the father
How were the traits of each plant influenced by its environment?
The plant have adapted to survive in a moist environment.
The plants can survive in a desert environment.
Too much water will give the plants root rot.
The plants cannot have flowers with being watered once week.
The coldest winter months in Austrailia are...
July and August
April and May
January and February
November and December
The dryest month in Australia is...
March
September
July
Decemner
The wettest month in Australia is...
March
January
July
June
Which proposal is the most reasonable?
introduce a different species of frog to the area.
expand the size of the farms fields so more crops can grow.
set aside an area with a pond that is protected from chemicals.
put a fence around the farms fields to keep the chemicals from getting out.
What is the best phrase that matches the data? *pick 2 answers
The offspring are identical to the parents
The offspring are different from their parents
The data shows that there is genetic variation
The data shows there is no genetic variation
How do water droplets form on the cup?
Ice in a cup makes water droplets form on the outer surface more slowly
Invisible particles of water in the air run into the cold outer surface and form droplets.
small droplets of water escape from the top of the cup
Particles of water shrink when cold and move through tiny holes in the cup
What do the students have to know NOW before they start their design? *pick 2 answers
The amount of money in the budget
The types of plants that attract butterflies to the region
How to expand the layout of the butterfly garden
What is the weather for the next week.
Which would most likely help increase the number of tortoises on the Islands?
remove fences that block tortoise habitats
build new roads for the cars with lower speed limit
increase the number of people visiting the Galapagos Islands
Protect the animals and plants that were brought here from other countries
Which statement best describes the role of the grass in the food web?
The grass plants break down dead plants and animals
The grass plants are producers that make their own food.
The grass plants are the main food for the snake and lizard.
The grass plants are the main source of energy for the hawk.
What would most likely happen if the mouse population disappeared?
The snake population would increase because there would be less hawks
The snake population may decrease because there would not be enough food.
The hawks would have more snakes to eat.
The lizards would have less animals to compete with for food.
What is the limitation of this food web?
There should be more than one type of producer
There are too many consumers
There are not enough abiotic factors.
There are no decomposers in the food feb.
What should student A do to create the best model for a louder wave? Pick 2 answers
She should lift her arm above the shoulder
Then down to below her waist
She should lift her arm at the shoulder
Then down to the waist
A
B
C
A
B
C
A farmer says that the cows should produce the same amount of milk since their environments are the same. Which three types of data provide evidence against this claim?
food
shelter
time spent outside
water availability
type of fence
Which difference between the McCoy and Kim Farms would most likely be responsible for the difference in milk production?
food
how long the family has owned the farm
time spent outside
water availability
type of fence
The flag will _____ because the overall force acting on the rope is unbalanced.
move towards Kristen
move towards Maria
not move at all
When the girls pull the rope, the flag does not move. This occurs if the force applied to the rope are...
equal in opposite directions
equal in the same direction
unequal in opposite directions
unequal in the same direction
Why are John's and Pablo's hands tired after practicing?
John and Pablo pulled the rope in the wrong direction.
John and Pablio were not strong enough to pull the rope.
The rope exerted a force on John's and Pablo's hands while they were pulling.
The rope exerted more force on John's and Pablo's hands than the overall force that they exerted on the rope.
What will happen to the speed and direction of motion of the flag if Maria can exert more force on the rope than Pablo?
The speed of the flag will increase as the flag moves towards Maria
The speed of the flag will decrease as the flag moves towards Pablo
The speed of the flag will remain the same as the flag stays in place
The speed of the flag will decrease as the flag moves towards Maria
Based on the table, putting wihch two kids on the same team would make the strongest team?
Kristen and Maria
Maria and Pablo
Maria and John
Pablo and Kristen
Which rock layer is older?
Land fossil layer
Marine fossil layer
