Which is NOT an effect of sewage put into the ocean?
A. growth of bacteria
B. growth of algae
C. growth of coral
D. death of marine life
C. growth of coral
100
Which is NOT a characteristic of organisms in the animal kingdom?
A. they use sunlight to produce their own food
B. they are made up of many different cells
C. they have the ability to move
D. they have cell membranes
A. they use sunlight to produce thier own food
100
What is the purpose of the plastic coating usually found on electric wires?
A. to strengthen the wires
B. to prevent electric shock
C. to make better connections
D. to keep the wires from getting hot
B. to prevent electric shock
100
Which does NOT cause erosion?
A. water
B. sunlight
C. wind
D. ice
B. sunlight
100
Racedogs would MOST LIKELY be crossbred for which characteristic?
A. long hair
B. highly developed sence of smell
C. companionship
D. speed
D. speed
200
The natural process of rocks gradually breaking up and being worn away over time is known as
A. weathering
B. cementing
C. sedimentation
D. melting
A. weathering
200
Which group of animals has the MOST similar type of body coverings?
A. humans, dogs, horses
B. owls, beetles, chickens
C. grasshoppers, bats, worms
D. snails, whales, sunfish
A. humans, dogs, horses
200
William put a sugar cube in a cup of hot water. After a period of time, what happened to the sugar cube?
A. it dissolved
B. it stayed on the bottom of the cup
C. it evaporated
D. it changed color
A. it dissolved
200
An extinct volcano is one that
A. erupts only once.
B. erupts once every 100 years.
C. is expected to erupt soon.
D. has not erupted in many years.
D. has not erupted in many years.
200
All vertebrate animals have
A. scales
B. warm blood
C. backbones
D. hair
C. backbones
300
Limestone is a sedimentary rock. How does acid rain affect limestone?
A. acid rain causes limestone to become magma
B. acid rain turns limestone into slate
C. acid rain builds up limestone
D. acid rain breaks down limestone
D. acid rain breaks down limestone
300
Which pair of kingdoms has members that can make their own food?
A. Plants and Animals
B. Fungi and Protists
C. Protists and Plants
D. Monerans and Fungi
C. Protists and Plants
300
All of the following can be called matter EXCEPT
A. ice
B. ideas
C. dust
D. air
B. ideas
300
When a volcano no longer erupts, the magma inside the vent cools and forms
A. melted igneous rock.
B. ash.
C. cinders.
D. solid igneous rock.
D. solid igneous rock.
300
Which animals are cold-blooded, live part of their lives in water and part on land, and go through metamorphosis?
A. reptiles
B. amphibians
C. birds
D. mammals
B. amphibians
400
A moving portion of Earth's crust and upper mantle is called a
A. fault
B. fold
C. plate
D. ridge
A. fault
400
A biologist discovers a new multicellular organism. The biologist is not sure if it is a plant or an animal. She decides to look at the cells under a microscope. Which structure would BEST indicate that the organism is a plant?
A. chloroplast
B. Golgi body
C. ribosome
D. lysosome
A. chloroplast
400
Which object would be most likely to rust?
A. an iron nail
B. a plastic comb
C. a glass marble
D. a paper cup
A. an iron nail
400
Which characteristic of oceans shows that they are in constant motion?
A. their organisms
B. their shape
C. their depth
D. their tides
D. their tides
400
Which is NOT a mammal?
A. a cow
B. a dog
C. a duck
D. a zebra
C. a duck
500
The process that wears away rocks and minerals on Earth is called
A. weathering
B. gravity
C. layering
D. folding
A. weathering
500
Biologist use various traits to classify living things. Which of the following would be LEAST useful in a classification scheme for mammals?
A. color of hair
B. shape of teeth
C. skeleton bones
D. digestive system
A. color of hair
500
A different chemical substance is formed when
A. a cloth is cut
B. a cup breaks
C. a candle burns
D. a piece of chalk falls apart
C. a candle burns
500
Your teacher tells you to bring an item to class taht shows evidence of erosion. which of the following would be the BEST to bring?
A. a piece of lavea from a volcanic area
B. a crystal from the inside of a geode
C. a piece of slate from a slate quarry
D. a round rock from a streambed
D. a round rock from a streambed
500
Which can bacteria do?
A. spoil food
B. heal cuts
C. purify water
D. cause cancer