Which factors best help a meteorologist predict the weather?
A air pressure, wind speed, time of day
B location, season, rainfall
C temperature, air pressure, time of day
D wind speed, temperature, location
D wind speed, temperature, location
To which group do fungi belong?
A consumers
B decomposers
C herbivores
D producers
B decomposers
Regina is baking a cake. She prepares the batter by adding 500 g of flour, 200 g of butter, and 300 g of
sugar in a bowl.
What is the mass of the batter in the bowl?
A 500 g
B 700 g
C 800 g
D 1,000 g
D 1,000 g
To keep from burning a hand on a pot handle, of which material should the handle be made?
A aluminum
B glass
C iron
D rubber
D rubber
Which diagram best shows how energy flows through a simple food chain?
A Leaves → Caterpillar → Bird
B Tree → Bird → Caterpillar
C Leaves → Tree → Caterpillar
D Caterpillar → Leaves → Bird
A Leaves → Caterpillar → Bird
Where would a cool, dry air mass most likely form?
A over cold ocean waters
B over cold land
C over warm land
D over warm ocean waters
B over cold land
A zebra herd lives in a prairie grassland habitat. How does the zebra get food in this habitat?
A The zebra hunts tigers.
B The zebra digs holes to find worms.
C The zebra eats different kinds of grasses.
D The zebra hunts other zebras.
C The zebra eats different kinds of grasses.
Margaret places a cube of butter in a pan and places the pan on a heated stove top. What change can
she observe?
A a change in mass alone
B a change of color alone
C a change of state alone
D a change of state and a change in shape
D a change of state and a change in shape
Why would a teapot be made of metal or glass?
A Both easily lose coldness energy.
B Both radiate heat well.
C Both are good conductors.
D Both are good insulators.
C Both are good conductors.
Which of the following is a correct food chain?
A human → corn → cow
B corn → human → cow
C corn → cow → human
D cow → human → corn
C corn → cow → human
Which pressure system is correctly paired with its most likely weather condition(s)?
A high-pressure → mostly fair skies
B high-pressure → cloudy and stormy
C low-pressure → mostly fair skies
D low-pressure → hot and partly cloudy skies
A high-pressure → mostly fair skies
If there were no decomposers in the ecosystem, what would happen?
A Some animals would become decomposers.
B Plants would become decomposers.
C The ecosystem would experience little impact.
D The nutrients in the ecosystem would decrease.
D. The nutrients in the ecosystem would decrease
Which activity will result in a new substance when completed?
A breaking a pencil in half
B chopping wood
C roasting a marshmallow
D softening butter
C roasting a marshmallow
Why do most substances expand when heated?
A Their molecules grow larger to protect themselves from the heat.
B Their molecules have more energy to move farther apart from each other.
C Their molecules move closer together.
D Their molecules gain mass.
B Their molecules have more energy to move farther apart from each other.
Which statement best describes a food web?
A The largest group in a food web is consumers.
B A food web is a network of food chains.
C A food web diagrams the energy at each level in an ecosystem.
D A food web is only one path of energy and nutrients in an ecosystem.
B A food web is a network of food chains.
A student hears on the radio that the outside temperature is 32 degrees Fahrenheit. What type of weather will the student most likely expect when she steps outside?
A cool, rainy fall weather
B cold, snowy winter weather
C hot, sunny summer weather
D spring weather with flowers blooming
B cold, snowy winter weather
Which type of ecosystem is terrestrial?
A estuary
B forest
C lake
D ocean
D. Forest
Terrestial means land
Which type of ecosystem is terrestrial?
A estuary
B forest
C lake
D ocean
B. forest
Terrestial means land
Heat energy can be transferred outside from homes through the walls, floor, roof, and windows. What
will reduce heat loss from a house?
A conduction
B convection
C insulation
D radiation
C insulation
Plants need a source of energy in order to perform photosynthesis. From which source do plants
receive the energy needed to perform photosynthesis?
A oxygen
B sugar
C sunlight
D water
C sunlight
Why is the North Pole much colder than locations along the equator?
A There is little snow cover at the North Pole which makes the air colder.
B The Sun shines more directly on locations along the equator.
C The equator is always closer to the Sun than the North Pole.
D The ocean currents cool the water around the North Pole.
B The Sun shines more directly on locations along the equator.
This is a list of some parts of an ecosystem.
star fish
kelp
rocks
salt water
Which ecosystem would have these parts?
A a stream
B a lake
C a tide pool
D a river
C. a tide pool
A student classifies the decay of a plant over time as a chemical change. Is the student correct, and why?
A No. The decay of a plant is reversible.
B No. The decay of a plant creates a new material.
C Yes. The decay of a plant is reversible.
D Yes. The decay of a plant creates a new material.
D Yes. The decay of a plant creates a new material.
Which material is best suited for its intended use?
A a wooden dish used to bake food
B a metal cup used to hold hot coffee
C a pair of paper gloves used to remove items from an oven
D a plastic spoon used to eat hot soup
D a plastic spoon used to eat hot soup
A pill bug is a type of insect that requires a terrestrial habitat with a large supply of leaf litter. In
which environment would a pill bug most likely be found?
A saltwater marsh
B lake
C grassland
D deciduous forest
D deciduous forest