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Worksheets7th Grade CBA #3 Review
Total questions: 189
Worksheet time: 2hrs 25mins
What conclusion can students draw regarding the cycling of matter within living systems?
As matter is broken down, it is recycled back into the environment to be used again by other organisms.
Matter is not broken down, and it is just used by other organisms.
The grass decomposed the banana peels.
The banana peels decomposed on their own.
Composting is the decomposition of organic matter. All compostable materials are either...
oxygen or nitrogen-based
carbon or nitrogen-based
hydrogen or nitrogen-based
air or nitrogen-based
Which layer of the space suit allows for drive life supporting need?
urine collecting device
in suit drinking bag
primary life support subsystem
helmet
Planet R is a small, terrestrial planet that has one moon, liquid water, and a thin atmosphere. What is Planet R?
Jupiter
Mars
Earth
Saturn
Astronauts may encounter various events while on a spacewalk. A spacesuit must ensure the astronaut is safe while venturing outside of the ship. Which of the following would result in the need for a strong outer layer on a spacesuit, similar to a bulletproof vest?
space walk
lack of nitrogen
passing comets
cold temperatures
The Habitable Zone
“One of the main ingredients for life as we know it is liquid water. Water exists as a liquid between 273K and 373K (unless the pressure is too low, in which case the water sublimates into gaseous water vapor). The region of the solar system (or any planetary system) where the temperature is in this range, is called the habitable zone."
Which is a reason why this area one might find the tiniest identification of life?
The temperature is consistent within a range.
There is usable liquid water.
An identifiable atmosphere is evident.
There is hydrogen gas available.
Life on Earth depends on the _____ as their heat source.
heat vents in on the ocean floor
volcanoes in the Pacific Ocean
the medium sized star
the heaters found in your home
When deciding if a place beyond Earth holds any possibility for life, the two things that are most looked for by astrobiologists are –
nitrogen and sodium
oxygen and nitrogen
carbon and water
carbon and hydrogen
A scientist is analyzing images of an object in the solar system. The features in the images that would cause the scientist to hypothesize that the object might be able to support life are –
Craters that indicate collisions with meteoroids
Poles that indicate a magnetic field
Ridges that indicate tectonic activity
Channels that indicate flowing water
Identify the following items need to be taken into consideration when planning human space travel except –
Access to oxygen, food, and water
Atmospheric thickness of neighboring planets
Extreme temperatures and pressure
Protection from solar radiation
All of the following are characteristics of the Earth’s atmosphere that allow for life to thrive except –
The atmosphere helps maintain stable temperatures.
The atmosphere rises 600 kilometers above Earth.
The atmosphere burns up meteoroids.
The atmosphere absorbs harmful radiation.
An astronaut returns from six months on the space station. The astronaut’s muscles are weak, requiring the astronaut to be helped from the spacecraft once back on Earth. Of the following accommodations on the space station, the one that might help alleviate this problem is –
Increased oxygen levels inside the space station.
Spacesuits that are lighter and easier to wear.
Exercise equipment that can be used to help maintain muscle mass
Food that helps astronauts with more energy.
The composition of the atmosphere protects life on Earth. Which of the following is NOT a way that the atmosphere protects the Earth?
causes the seasons
maintains temperature
absorbs radiation
burns up meteoroids
An astronaut should not remove his or her helmet while working outside the space station because the helmet provides -
hydrogen
nitrogen
argon
oxygen
Earth does support life primarily because it has liquid water, a heat source, the right distance away from the Sun, and a protective ozone layer from the Sun’s radiant energy. The gas that is found in the greatest quantity in our atmosphere is:
nitrogen
hydrogen
argon
oxygen
The accommodation that is designed to help overcome the unique difficulties associated with using the restroom in space is –
a vacuum system to control the flow of waste
a drain in the floor of the bathroom
a skid-proof floor mat
a bench in the bathroom
All of the following are characteristics of Jupiter’s moon, Europa.
Of these, the condition that does NOT allow Europa to support life as we know it is –
water on the surface
gravity on the surface
surface temperature of -260°F
oxygen in the atmosphere
Which item would prevent the body from overheating?
hard upper torso
liquid cooling and ventilation garment
gloves
lower torso
A space suit includes a helmet, gloves, boots, and a suit that completely covers the body. What vital part of the spacesuit, critical for keeping the astronaut alive, is missing from this list?
a handheld computer
a robotic arm
a jet pack
an oxygen system
NASA is always searching for life beyond Earth and has found there to be three essentials for this to happen. All of the following would be a necessary requirement for life beyond Earth except –
Proper distance between the planet and the source of heat.
Chemicals to ensure that vegetation is supported.
Liquid water is available.
Atmosphere with necessary gaseous elements for gas exchange.
Can you explain the "Goldie Locks" idea as concerns to life in outer space?
No I can't
Not sure, so
Might be
Yes
When given a chart or graph, what do you need to pay close attention to and read very close?
data in the boxes
titles of the columns
general title
titles of the rows
It hadn't rained for three months straight and the _________ began to kill our crops.
Functions of animals that help them survive in their environment are —
structural adaptations
modifications
physical characteristics
behavioral adaptations
