Matter
Which of the following is an example of a chemical change?
A. clouds forming
B. sugar dissolving
C. water freezing
D. a candle burning
D. a candle burning
What keeps Earth in orbit around the Sun?
A. the inertia of the Moon
B. the location of Earth’s orbit
C. the speed of Earth’s rotation
D. the Sun’s gravitational pull
D. the Sun’s gravitational pull
Which type of weather is usually associated with a cumulus cloud?
A. fair
B. humid
C. foggy
D. stormy
A. fair
Which is a trait that a child can inherit from its parents?
A. eye color
B. a broken leg
C. length of hair
D. language skills
A. eye color
A food web includes grass, grasshoppers, moss and mushrooms. Which is identified as a consumer?
grasshopper
The Sun releases light and heat energy that cause changes on Earth. How does the Sun’s energy change water?
A. The energy makes liquid water freeze.
B. The energy makes water vapor from liquid water.
C. The energy makes clouds release rain.
D. The energy makes water collect into puddles.
B. The energy makes water vapor from liquid water.
What is transferred when a bat strikes a ball?
Energy
Which MOST affects the path of a weather system in the United States?
A. the width of the jet stream
B. the speed of the jet stream
C. the location of the jet stream
D. the temperature of the jet stream
B. the speed of the jet stream
Which is an inherited characteristic of a tree?
A. a broken branch on a pine tree
B. a hollow in an oak tree
C. a scar on a maple tree
D. a thick trunk on a pecan tree
D. a thick trunk on a pecan tree
17. Which two organisms in the food chain shown below are carnivorous?
grass --> mice --> snakes --> hawks
A. grass and mice
B. mice and snakes
C. hawks and grass
D. snakes and hawks
D. snakes and hawks
Solar radiation has a part in the water cycle by
A. affecting ocean tides.
B. changing liquid water to vapor.
C. determining the type of clouds formed.
D. helping in the absorption of groundwater.
B. changing liquid water to vapor.
Which best describes an object with balanced forces acting on it?
A. The object will move to the left
B. the object will move vertically
C. The object's motion will not change
D. The object will move to the right.
C. The object's motion will not change
Which of these actions causes wind?
A. rotation of Earth on its axis
B. movement of air from water to land
C. uneven heating of Earth’s surface
D. air passing Earth as it revolves around the Sun
C. uneven heating of Earth’s surface
A dog rolls over and receives a treat. The dog rolls over again. This is an example of
A. learned behavior
B. adaptive behavior
C. inherited behavior
D. instinctive behavior
A. learned behavior
Meadow voles are small mouse-like animals that eat plants and insects. Their niche in an ecosystem is a
A. omnivore
B. herbivore
C. producer
D. scavenger
B. herbivore
After a rainfall, which process in the water cycle draws the water back up into the air?
A. condensation
B. evaporation
C. circulation
D. precipitation
B. evaporation
A toy car rolls down a ramp. Which of the following is a force that would impact its motion?
A. Static friction
B. Rolling Friction
C. Magnetism
B. Rolling Friction
After it rains there are puddles on the ground. After a day of sunshine the puddles disappear. What is responsible for their disappearance?
a) condensation
b) evaporation
c) precipitation
d) run-off
b) evaporation
Which two human body systems are MOST responsible for getting oxygen to cells?
A. digestive and skeletal
B. skeletal and circulatory
C. circulatory and respiratory
D. respiratory and digestive
C. circulatory and respiratory
Which comparison of ecosystems is true?
A. Tundras are warmer than grasslands
B. Grasslands get more rain than deserts
C. Deserts have more plants than rainforests
D. Rainforests are rockier than tundras
B. Grasslands get more rain than deserts
Which factor determines whether precipitation will be in the form of rain or snow?
A. wind
B. humidity
C. air pressure
D. temperature
D. temperature
Paco throws a ball. What force pulls the ball down toward the ground?
A. friction
B. gravity
C. inertia
D. momentum
B. gravity
A cold front will move through Raleigh late Wednesday afternoon. Which type of weather conditions will Raleigh most likely experience during that time?
A. cooler temperatures Tuesday, clear skies late Wednesday, and warm temperatures on Thursday
B. warmer temperatures Tuesday, clear skies late Wednesday, and cooler temperatures on Thursday
C. warmer temperatures Tuesday, stormy weather late Wednesday, and cooler temperatures on Thursday
D. cooler temperatures Tuesday, stormy weather late Wednesday, and warmer temperatures on Thursday
C. warmer temperatures Tuesday, stormy weather late Wednesday, and cooler temperatures on Thursday
Which BEST describes ALL unicellular organisms?
A. Every cell is round
B. Every cell can make food
C. Every cell can move on its own
D. Every cell performs all life functions
D. Every cell performs all life functions
Decaying plants and animals are important to an ecosystem because they
A. cause disease in living organisms
B. reduce soil erosion
C. recycle oxygen to the air
D. return nutrients to the soil
D. return nutrients to the soil