Show:
Astronomy
Water and Weather
Light and Sound
Force and Motion
Ecology
100
What color are the hottest stars? a. orange b. red c. blue d. yellow
What is blue?
100
What two elements make up a molecule of water? a. nitrogen and oxygen b. hydrogen and oxygen c. helium and oxygen d. carbon and oxygen
What is hydrogen and oxygen?
100
Which object below is translucent? a. brick b. water c. glass window d. waxed paper
What is waxed paper?
100
The wheelbarrow makes work easier because the handles are part of a simple machine called ____ a. an inclined plane b. a lever c. a screw d. wedge
What is a lever?
100
Which of these living things is a producer? a. a cow b. an earthworm c. a squirrel d. a rose bush
What is a rose bush?
200
You can see planets move, but not stars. This is because planets are ______ a. closer to Earth. b. much bigger than stars. c. much hotter than stars. d. the only objects in space that move.
What is closer to earth?
200
What is water in the gaseous state called? a. ice b. frost c. water vapor d. latent water
What is water vapor?
200
Most of the light that strikes a transparent material is a. absorbed b. attracted c. reflected d. transmitted
What is transmitted?
200
A pulley is a simple machine that makes work easier by a. lifting things b. turning things c. holding things together d. pushing material outward
What is lifting things?
200
Which statement is true? a. Producers eat consumers. b. Producers eat other producers. c. Consumers eat other consumers. d. Consumers make their own food from sunlight.
What is consumers eat other consumers?
300
Which is the brightest object in the night sky after the moon? a. Jupiter b. Saturn c. Venus d. Mercury
What is Venus?
300
What happens when sublimation occurs? a. Water vapor turns into ice. b. Liquid water turns into water vapor. c. Ice turns into liquid water. d. Water vapor turns into liquid water.
What is water vapor turns into ice?
300
Which object below is opaque? a. air b. apple c. paper d. water
What is an apple?
300
An axe can be used to split wood. The blade of the axe is a simple machine called _______ a. an inclined plane b. a lever c. a screw d. a wedge
What is a wedge?
300
Which statement is true? a. Producers could live without consumers. b. Consumers could live without producers. c. Consumers do not need decomposers. d. Producers do not need decomposers.
What is producers could live without consumers?
400
Apparent magnitude measures _________ a. the temperature of a star. b. how bright a star appears from Earth. c. the distance of a star from the solar system. d. the size of stars on the H - R diagram.
What is how bright a star appears from Earth?
400
What happens to water during evaporation? a. It freezes. b. It absorbs heat. c. It melts. d. Heat is taken away.
What is it absorbs heat?
400
You see yourself in a smooth sheet of aluminum foil. You don't see yourself in a crumpled sheet of aluminum foil because the light is ________ a. absorbed b. attracted c. magnified d. scattered
What is scattered?
400
Which of the following BEST describes how gravity affects a soccer ball rolling across a field? a. Gravity does not pull on the ball. b. Gravity changes the ball's speed. c. Gravity changes the ball's direction. d. Gravity does not change the ball's motion.
What is gravity does not change the ball's motion?
400
Decomposers help plants by a. keeping consumers from eating them. b. adding food to the soil. c. providing water. d. stopping plants from decaying.
What is adding food to the soil?
500
Why does the sun appear brighter to us than other stars? a. It is brighter than all other stars. b. It is closer to Earth than other stars. c. Yellow stars always appear brighter than other stars. d. The moon reflects the sun's light and makes it look brighter.
What is it is closer to Earth than other stars?
500
What must happen before water can change from one state to another? a. It must gain or lose heat. b. It must lose an oxygen molecule. c. Its temperature must decrease. d. Its temperature muse increase.
What is it must gain or lose heat?
500
On a hot, summer day, you may feel warmer if you wear a black shirt rather than a white shirt. This is because light that strikes black objects is mostly ______ a. absorbed b. dissolved c. reflected d. transmitted
What is absorbed?
500
A doorknob is a simple machine called ____________ a. a lever. b. a screw. c. an inclined plane d. a wheel and axle.
What is a wheel and axle?
500
Where does a food chain start? a. with animals that eat grass b. with animals that eat other animals c. with plants that eat animals d. with plants that make food
What is with plants that make food?