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WorksheetsGeneral Science
Total questions: 21
Worksheet time: 21mins
When a plant undergoes photosynthesis, one of the by-products is
carbon dioxide
light
ozone
oxygen
Why is the nucleus so important to a living cell?
It controls the production and elimination of cell waste.
It controls most of the activities of the cell.
It controls photosynthesis.
It uses oxygen to make carbon dioxide.
Which of the following do not have organelles?
Muscle cells
Protozoa
Nerve cells
Bacteria
Which of the following is not an example of a fruit?
Raspberries
Sunflower seeds
Corn
potato
Which of the following terms can be used to describe a bird?
Crustacean, endoskeleton
Endoskeleton, cold-blooded
Invertebrate, omnivore
Vertebrae, warm-blooded
Why are decomposers important to an ecosystem?
They create soil for farming.
They enhance the habitat with specialized particles important to life.
They stabilize the soil.
They make nutrients available for plants to use.
Which of the following is the part of the skeletal system that protects the spinal cord?
Marrow
Cartilage
Ligaments
Vertebrae
A bruise on your skin is the result of which of the following?
Overactive sweat glands
Excess strain on the muscle
Broken capillaries
Swelling
The function that moves food from one part of the digestive system to another is called
mechanical decomposition.
respiration.
digestion.
peristalsis
Which of the following words are all associated with the nervous system?
Hypothalamus, pons, cortex
Which of the following words are all associated with the nervous system?
Lymph nodes, spleen, tonsils
Antigens, T cells, cilia
Which of the following is the name for the space between two nerve cells where an electric charge transmits information?
Axon
Synapse
Nerve cell gap
Dendrite
Which of the following states is likely to have the greatest biodiversity?
North Dakota
Florida
Nebraska
Illinois
Which of the following best represents what happens to ultraviolet radiation from the sun when it reaches Earth’s atmosphere?
All of it reaches Earth’s surface.
Some of it is absorbed by the ozone layer.
It is deflected back into space.
It changes into chlorofluorocarbons.
Which of the following properties of a sound wave affects how loud or soft the sound is?
Amplitude
Trough
Frequency
Crest
The major force causing sea-floor spreading, continental drift, and the collision of continental plates is
creation of oceanic ridges.
subduction of Earth’s core.
compression of continents.
covection currents in the mantle.
When two tectonic plates converge and one rises above the other, which of the following are likely to form?
Tsunamis
Hot spots
Volcanoes
Rifts
Breaking waves or breakers that occur near the shoreline are caused by which of the following conditions?
Increasing tidal forces
The expansion of the wavelength of the wave.
Friction between the wave trough and the ocean bottom.
Earthquakes that occur far out in the ocean.
How long does it take for Earth to make one revolution around the sun?
1 month
1
1 day
1 year
An eclipse of the sun occurs under which of the following conditions?
Earth, the sun, and the moon are perpendicular to each other.
Earth is rotating faster than the moon.
The moon is between the sun and Earth.
Earth is between the sun and the moon.
Earth’s greenhouse effect is caused by which of the following conditions?
The increase in the thickness of the ozone layer.
The number of plants in tropical rainforests trapping CO2.
Heat from the sun that is trapped by atmospheric gases.
Changing rainfall patterns from global warming.
The basic unit of life is
the cell
DNA
the carbon molecule
oxygen
