Life Science
When a fox builds a den, it is demonstrating A. instinct. B. dominant traits. C. a physical trait. D. environmental influences.
What is A. instinct.
Which of the following is true of mountains? A. They are built up by waves. B. They are built up by water carrying sediment away. C. They are built up when plates push together. D. They are made by rivers cutting through land
What is C. They are built up when plates push together.
Copper is to conductor as A. a magnet is to an electromagnet B. charge is to static electricity C. switch is to circuit D. plastic is to insulator
What is D. plastic is to insulator
From what structure do vertebrates get their name? A. skull B. backbone C. number of legs D. ribs
What is B. backbone
The part of the Earth is divided into plates?
What is the crust.
Two balloons move closer when they are placed close together. What is the BEST explanation? A. They have mixed charges. B. They have the same charge. C. They have opposite charges. D. They are uncharged.
What is C. They have opposite charges.
Which investigation would provide evidence of a chemical change? A. Spray perfume into the air, and when the air and perfume mix, observe the change in odor that happens as they mix. B. Put an antacid tablet in water, and when the antacid and water mix, observe the bubbles that form as a new substance is created. C. Heat water in a pan on a stove, and observe the steam that forms as the state of matter of the water changes. D. Blow air through a wand filled with soap solution, and observe the bubbles that form as the air becomes trapped.
What is B. Put an antacid tablet in water, and when the antacid and water mix, observe the bubbles that form as a new substance is created.
Which landform is carved by running water? A. sand dune B. canyon C. mountain D. hill
What is B. canyon
Which landform is not built by a constructive force? A. delta B. canyon C. sand dune D. volcano
What is B. canyon
Which of the following types of magnets can be switched off when magnetic attraction is not needed? A. bar magnet B. magnetic field C. electromagnet D. static magnet
What is C. electromagnet
When hydrogen and oxygen react they explode and form water. What kind of change is that? A. physical B. chemical C. both physical and chemical D. neither physical nor chemical
What is B. chemical
What characteristics help scientist classify an organism as an animal? A. It is made up of many cells and feeds on other living or once living things. B. It is made up of many cells and absorbs food from its surroundings. C. It is made up of one cell and makes its own food. D. It is made up of many cells and makes its own food.
What is A. It is made up of many cells and feeds on other living or once living things.
How does a hot spot form a chain of volcanoes? A. Volcanoes form above a hot spot. The volcanic mountains move as the plate moves. B. The hot spot allows magma to ooze from a vent. C. The hot spot allows magma to explode from a vent. D. The hot spot forms alternating layers of lava and ash.
What is A. Volcanoes form above a hot spot. The volcanic mountains move as the plate moves.
A student measures the mass of a whole orange. He cuts up the orange and measures the mass again. What is TRUE about the orange's mass before and after it was cut up? A. It was greater when it was whole. B. It is greater in pieces. C. It is the same whole or cut up. D. It is less when it is a whole.
What is C. It is the same whole or cut up.
Sea grass has begun to grow on a sand dune. How is the sea grass MOST likely to affect the sand dune? A.) The dune will move toward the land. B.) The dune will move toward the ocean. C.) The dune will erode more slowly and may even grow. D.) The dune will erode more quickly.
What is C.) The dune will erode more slowly and may even grow.
What does an electromagnet have that a bar magnet does not have? A. electric field B. coil of wire C. magnetic poles D. magnetic field
What is B. coil of wire
What happens to a river when slow moving water deposits sediment on its bottom? A. The river changes course. B. The river becomes narrower. C. The river becomes deeper. D. The river becomes shallower.
What is D. The river becomes shallower.
As the temperature of water increases from 0 degrees C to 100 degrees C, what changes of state does it pass through - going from coldest to hottest? A. ice, water vapor, liquid water B. liquid water, ice, water vapor C. water vapor, ice, liquid water D. ice, liquid water, water vapor
What is D. ice, liquid water, water vapor
Mendel found that shortness in pea plants is recessive. If two pea plants are short, what must the parents look like? A. One is short, the other is tall. B. They are both short. C. They are both tall. D. There is no way to tell.
What is D. There is no way to tell.
What is a benefit to using floodplains as a flood control measure? A. They prevent sediment from being carried down a river. B. They prevent rivers from overflowing their banks. C. They absorb the water during a flood. D. They protect the structures build on them from damage.
What is C. They absorb the water during a flood.