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WorksheetsHow Plants and animals Use Energy Transformations pages 82-83
Total questions: 15
Worksheet time: 9mins
What is the most impressive example of energy transformations according to the text?
Plants absorbing solar energy and converting it to chemical energy.
Chemical energy being converted to mechanical energy in machines.
Energy transformations in nuclear reactions.
Energy transformations in human metabolism.
Plants are able to absorb solar energy in the form of _______ and convert it to chemical energy.
sunlight
water
oxygen
carbon dioxide
According to the text, what does the chemical energy in plants help sustain?
The plant's growth
Our growth when we consume the plant
The growth of animals
The growth of bacteria
Plants contribute to the oxygen we breathe by:
absorbing carbon dioxide and releasing oxygen during photosynthesis
absorbing oxygen and releasing carbon dioxide
absorbing nitrogen and releasing oxygen
absorbing oxygen and releasing nitrogen
The diagram shows photosynthesis. Which best describes this process?
chemical reaction
mechanical operation
biological process
mathematical calculation
What happens to the chemical energy when an animal eats a plant?
It is completely lost.
It is converted into solar energy.
It is stored in the animal's body.
It is converted into light energy.
A food web is a complex network of interconnected food chains in an ecosystem. What does a food web represent?
The flow of energy and nutrients through different organisms
The migration patterns of animals
The water cycle in nature
The process of photosynthesis
In the Cross Timbers ecosystem of Oklahoma, what do all the pathways in the food web trace back to?
The sun
Water sources
Soil nutrients
Animal waste
What are the two main things plants get from the earth?
Air
(Carbon dioxide)
soil
water
Air
(oxygen)
The Process that plants use to make their food?
Photosynthesis
osmosis
cell regeneration
predator and prey
Plants take in (a) energy and use photosynthesis to transform it into (b) energy.
When an organism eats a plant or another organism they receive _______ energy.
sound
light
thermal
chemical
Plants start with energy directly from _______.
the sun
the moon
their food
soil
Energy enters an ecosystem through
animals
plants
fungi
insects
What process brings energy into an ecosystem?
photosynthesis
chemsynthesis
It's already there
atoms
