Water Cycle
After a rain, there is a puddle left on the sidewalk. After a sunny day, the puddle is gone. Which process is most responsible for this?
A) Condensation
B) Transpiration
C) Evaporation
D) Runoff
C) Evaporation
A substance which takes the shape of its container as has a definite volume is called a:
A) Solid
B) Liquid
C) Gas
D) Crystal
B) Liquid
A weather forecaster is giving the news report and says that the wind speed is increasing. What tool did they use to get this data?
A) Barometer
B) Wind Vane
C) Anemometer
D) Thermometer
C) Anemometer
What causes a wagon to speed up when going down hill?
A) Gravity
B) Friction
C) Air Pressure
D) Mass
A) Gravity
True or False: Land heats up faster than water.
True
What role does the sun’s energy play in the process of transpiration in plants?
A) The sun’s energy causes the moisture in plants to evaporate.
B) The sun’s energy causes the moisture in plants to drip off the leaves.
C) The sun’s energy causes the moisture in plants to return to the ground.
D) The sun’s energy causes the moisture in plants to stay in the leaves until it rains.
A) The sun’s energy causes the moisture in plants to evaporate.
Which material is best used to cook food on the stove?
A) Foam, because it is a poor conductor of heat
B) Paper, because it conducts heat
C) Glass, because it is a good conductor of heat
D) Metal, because it radiates heat
D) Metal, because it radiates heat
Andrea lives in the southern hemisphere. What season does she most likely experience in August?
A) Spring
B) Summer
C) Winter
D) Autumn
C) Winter
Two students are having a race, one has a wooden ball and the other has a marble. The balls are traveling down the same ramp. Which factor is the best indicator to know which one will be the fastest?
A) The size of the ball
B) The amount of force applied to the ball
C) Total time the ball rolled
D) Mass of the ball
D) Mass of the ball
If the mass of a container of liquid ice cream is 200 grams, how many grams will the same container of ice cream be after the ice cream solidifies?
A) 80 grams
B) 300 grams
C) 200 grams
D) It’s impossible to know
C) 200 grams
One morning, a student notices that the grass in the area is wet, although it had not rained during the night. What could have caused the grass to be wet?
A) During the night, water had evaporated from the trees in the area.
B) The air above the ground became warmer during the night and caused precipitation.
C) When the air cooled above the ground during the night, water vapor condensed on the grass.
D) The grass soaked up water from the ground during the night.
C) When the air cooled above the ground during the night, water vapor condensed on the grass.
If 15 grams of water are added to 10 grams of salt, how much salt water will be made?
A) 10 grams
B) 5 grams
C) 25 grams
D) 15 grams
D)15 grams
On a cold, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area in the next 24 hours. Which weather condition will this system most likely bring to the area?
A) Stormy
B) Sunny
C) Snowy
D) Hot
B) Sunny
Which best explains why a bicycle slows down when its brakes are applied?
A) The brakes heat the rubber on the bicycle tires
B) The brakes add energy to the bicycle
C) The brakes increase the force of gravity on the bicycle
D) The brakes cause frictional forces on the wheels of the bicycle
D) The brakes cause frictional forces on the wheels of the bicycle
A wagon is pushed in a straight line. How would an increase in friction on the wagon wheels affect the wagon?
A) It would cause the wagon to move faster
B) It would cause the wagon to change mass
C) It would cause the wagon to change direction
D) It would cause the wagon to slow down
D) It would cause the wagon to slow down
In which way are evaporation and condensation similar?
A) Both cause decreases in air temperature
B) Both cause increases in air temperature
C) Both are caused by the warming of the atmosphere
D) Both are caused by changes in heat energy
D) Both are caused by changes in heat energy
Ines put baking soda in a pot with boiling water. The baking soda slowly disappeared as she stirred. Which process occurred to make the baking soda disappear?
A) Chemical change
B) Physical change
C) Radiation
D) Convection
B) Physical change
What is the difference between weather and climate?
A) Weather describes seasons; climate describes daily temperature
B) Weather is daily conditions; climate is the average over a long period of time
C) Weather happens in winter; climate happens in summer
D) Weather is caused by the ocean; climate is caused by land
B) Weather is daily conditions; climate is the average over a long period of time
A runner measured the time it took her to run 5 miles. What can she calculate from the distance and time measurements?
A) Direction
B) Mass
C) Speed
D) Force
C) Speed
On a warm winter day in North Carolina, the wind is blowing steadily from the south. The wind is supposed to change direction the next day and begin blowing from the north. Which prediction about the weather can be made, based on this information?
A) No precipitation will form.
B) More clouds will form.
C) Temperatures will be cooler.
D) Temperatures will be warmer.
C) Temperatures will be cooler.
In Durham County last Wednesday, there was a large amount of flooding. What likely happened?
A) Low runoff, low evaporation, high transpiration
B) High runoff, low evaporation, low precipitation
C) Low runoff, high infiltration, high condensation
D) High runoff, low evaporation, high precipitation
D) High runoff, low evaporation, high precipitation
A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon as a result of this change?
A) The mass of the balloon increases because the size of the balloon increased
B) The mass of the balloon increases because the temperature of the balloon has increased
C) The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up
D) The mass of the balloon stays the same because warming decreases the mass enough to cancel out the effect of increasing the size
C) The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up
Why does a low-pressure system often bring stormy weather?
A) Cold air sinks then warms, causing water vapor to evaporate and prevent clouds from forming.
B) Warm air rises then cools, causing water vapor to condense into clouds and precipitation.
C) Air moves quickly into the low-pressure area, causing air to heat up and clouds to disappear.
D) Warm air rises unevenly, forming scattered clouds.
B) Warm air rises then cools, causing water vapor to condense into clouds and precipitation.
A bowling ball moves across a flat surface at 7 feet per second. If a student is asked to calculate the total distance traveled by the ball, what other information does the student need to know?
A) Amount of friction between the ball and the surface
B) Amount of force applied to the ball
C) Total time the ball rolled
D) Mass of the ball
C) Total time the ball rolled
A student puts 20 pounds of bricks in one wagon and 30 pounds of bricks in another identical wagon. The same force is applied to both wagons, and their speed is tracked for 20 seconds. Which statement best explains the motion of the wagons?
A) The wagon with 20 pounds of bricks will move faster.
B) The wagon with 30 pounds of bricks will move faster.
C) The wagons will both start at the same speed, but then the wagon with 30 pounds will move faster.
D) The wagons will both start at the same speed, but then the wagon with 20 pounds of bricks will move faster.
A) The wagon with 20 pounds of bricks will move faster.