WorksheetsScience Grade 7 NCFE Review
Total questions: 15
Worksheet time: 9mins
How does the energy of a roller-coaster cart change as the cart travels from the top of the roller coaster to the bottom?
The cart has greater kinetic energy at the top than it does at the bottom.
The cart has no energy at the top and more energy at the bottom.
The cart has less potential energy at the top than it does at the bottom.
The cart has potential energy at the top that is transformed to kinetic energy as it moves to the bottom.
Why does the troposphere experience the greatest amount of atmospheric pressure compared to the other atmospheric layers?
It has the highest temperatures.
It produces the ozone layer.
It is the region in which weather occurs
It contains a high concentration of gas particles.
Which explains why most of the rain that falls comes from the ocean?
The majority of precipitation takes place over the ocean.
The majority of evaporation takes place over the ocean.
Most clouds form near or over the ocean.
Most rivers deposit freshwater into the ocean.
A sea breeze blows from the ocean toward the shore. Why does this occur?
High pressure over the land causes a downdraft to occur.
Air over land heats faster than air over water, which causes convection.
The tide carries the wind to the shore as it moves back and forth.
Conduction of heat from the warm water produces wind from the ocean.
Barometric pressure has been dropping all day. What weather conditions will most likely occur?
sunny weather
stormy weather
calm weather
hot weather
Which two organisms contain chloroplasts and eyespots?
amoeba and paramecium
paramecium and volvox
volvox and euglena
euglena and amoeba
Tina observed a cell under a microscope. She concluded that it was a plant cell instead of an animal cell. Which structure helped her come to this conclusion?
She saw a vacuole, which animal cells lack.
She saw a cell membrane, which animal cells lack.
She saw a nucleus, which animal cells lack.
She saw a chloroplast, which animal cells lack.
Which is a function of the respiratory system?
to provide the body with carbon dioxide, which reacts with food to produce energy
to provide the body with oxygen, which reacts with food to produce energy
to provide the cells with glucose, which is used as a source of energy
to provide the cells with water, which is used as a source of energy
Doppler radar shows a vertical rotating column of air with high wind speeds. Which is most likely occurring?
the formation of a hurricane
the formation of a tornado
approaching warm front
approaching snowstorm
How do forces act on a dropped object as it is falling?
Air resistance is pushing up on the object, while gravity is pulling it down.
Air resistance is pulling down on the object, while gravity is pushing it up.
Both gravity and air resistance are pulling down on the object.
Both gravity and air resistance are pushing up on the object.
How are tissues and organs related?
Groups of tissues form cells, which work together to make up a single organ.
Groups of organs form cells, which work together to make up a single tissue.
Groups of tissues work together to make up a single organ.
Groups of organs work together to make up a single tissue.
Why is it important for the United States to monitor air pollution levels in other countries?
Air pollution can improve the ozone layer amounts in the atmosphere.
Air pollution can travel to the United States and affect people’s health.
The United States is the only country able to monitor the air quality.
The United States has clean air and is able to help other countries.
How does the convection of air produce thunderstorms?
by causing warm air to sink and cold air to rise
by causing warm air to rise and cold air to sink
by causing both warm air and cold air to rise
by causing both warm air and cold air to sink
Why does air pressure decrease from the troposphere to the exosphere?
because there are fewer air molecules as altitude increases
because there are more air molecules as altitude increases
because there are higher temperatures as altitude increases
because there are lower temperatures as altitude increases
Which best explains how the Coriolis effect influences weather conditions?
It causes winds to rotate, forming tornadoes on Earth.
It causes winds to turn to the right in the northern hemisphere.
It causes winds to move to the right in the southern hemisphere.
It causes winds to follow a straight–line path around Earth.
