Bill leaves his glass of water outside on a hot day. At the end of the day the water is nearly gone. What is most likely the reason the water is gone?
A. transpiration B. evaporation C. precipitation
B. Evaporation
Which of the following changes to matter will result in a new substance with new properties?
A. Breaking Glass B. Baking a cake C. Boiling Water D. Chopping wood
B. Baking a cake
Which best describes heat transfer by radiation?
A. a slice of bacon frying in a pan
B. a pot on a stove boiling water
C. a camp fire warming hands
D. a hot air balloon
C. A campfire warming hands.
Which substance will conduct the least amount of heat?
A. glass
B. copper
C. plastic
D. aluminum
C. Plastic
Rain, sleet, snow, and hail are examples of which process in the water cycle?
A. condensation B. evaporation C. precipitation
C. Precipitation
Bess found 25 balls of paper that weigh 0.5 lbs all together. Which best
describes the weight of all the paper before it was crumpled into balls?
A. 0.5 lbs
B. 1.0 lb
C. 5.0 lbs
D. 12.5 lbs
A. 0.5 lbs
Sam is cooking an egg in a pan on the stove. Which causes the metal pan to become hot?
A. conduction B. convection C. evaporation D. radiation
A. Conduction
Which container will be less likely to feel cold on the outside when filled with ice?
A. a foam cup B. a glass cup C. a metal cup D. a paper cup
A. a foam cup
Heat from the sun increases the speed of which water cycle process?
A. evaporation B. transpiration C. condensation D. precipitation
A. Evaporation
Which is a chemical change?
A. frying an egg B. boiling water C. breaking a glass cup D. crushing a piece of bread
A. frying an egg
Which best describes the flow of heat?
A. from a larger object to a smaller object
B. from a warmer object to a cooler object
C. from a cooler object to a warmer object
B. from a warmer object to a cooler object
How is a conductor different from an insulator?
A. Heat moves more easily through a conductor than through an insulator.
B. A conductor weighs more than an insulator does.
C. An insulator weighs more than a conductor does.
D. Heat moves more easily through an insulator than through a conductor.
A. Heat moves more easily through a conductor than through an insulator.
Which best explains why the sun is needed in order to produce rain?
A. The sun cools the clouds, which causes them to hold less rain.
B. The sun cools ocean water, which causes more clouds to form.
C. The sun heats the clouds, which causes them to hold more rain.
D. The sun warms ocean water, which causes more clouds to form.
D. The sun warms ocean water, which causes more clouds to form.
A student mixed together three different foods to make a trail mix. Which statement is MOST LIKELY true about the food?
A. The weight of the trail mix is greater than the weights of the three foods added together.
B. The matter in the trail mix is different from the matter in the three foods used to make it.
C. The weight of the trail mix is equal to the weights of the three foods added together.
D. You cannot easily reverse the change that formed the trail mix
C. The weight of the trail mix is equal to the weights of the three foods added together.
Which of the following is an example of radiation?
A. Macaroni moving around in a pot of boiling water.
B. Steam rising from a boiling pot of grits being cooked.
C. The sun shining through a window and warming a table.
C. The sun shining through a window and warming a table.
Which explains how most metals react to being heated?
A. They become brittle. B. They contract. C. They expand. D. They break.
C. They expand.
Which are most likely to increase transpiration?
A. increased runoff and increased cloud cover
B. increased runoff and decreased cloud cover
C. decreased runoff and increased cloud cover
D. decreased runoff and decreased cloud cover
B. increased runoff and decreased cloud cover
Elsa is making a grilled ham-and-cheese sandwich. She uses a 20-gram slice of cheese, 40 grams of sliced ham, and two 15-gram slices of bread. After she heats the sandwich on a griddle, the cheese is melted. What will be the mass of her sandwich?
A. 55 grams B. 60 grams C. 75 grams D. 90 grams
D. 90 grams
Which causes the steam above a boiling pot of water to move?
A. conduction B. convection C. radiation D. transpiration
B. Convection
How do a wooden spoon and a metal spoon react when placed into a pot of hot soup?
A. Neither spoon gets hot because heat does not transfer through metal or wood.
B. Both spoons will quickly become hot because heat transfers through all materials equally.
C. The metal spoon gets hot sooner because heat transfers more easily through metal than wood.
D. The wooden spoon gets hot sooner because heat transfers more easily through wood than metal.
C. The metal spoon gets hot sooner because heat transfers more easily through metal than wood.