Ecosystems, Food Chains & Food Webs
Flashcard
•
Science
•
4th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an ecosystem?
Back
An ecosystem is a community of living organisms interacting with their physical environment, including both biotic (living) and abiotic (non-living) components.
Tags
NGSS.MS-LS2-3
2.
FLASHCARD QUESTION
Front
What role do producers play in an ecosystem?
Back
Producers, such as plants, convert sunlight into energy through photosynthesis, forming the base of the food chain.
Tags
NGSS.MS-LS1-6
3.
FLASHCARD QUESTION
Front
What is a food chain?
Back
A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.
Tags
NGSS.MS-LS2-3
4.
FLASHCARD QUESTION
Front
What is a food web?
Back
A food web is a complex network of interconnected food chains that illustrates how different organisms in an ecosystem are related through feeding relationships.
Tags
NGSS.MS-LS2-3
5.
FLASHCARD QUESTION
Front
What are decomposers and their role in an ecosystem?
Back
Decomposers, such as fungi and bacteria, break down dead organic matter, returning nutrients to the soil and supporting the growth of producers.
Tags
NGSS.MS-LS2-3
6.
FLASHCARD QUESTION
Front
What does it mean for a species to be extinct?
Back
A species is considered extinct when there are no remaining individuals of that species alive anywhere in the world.
Tags
NGSS.MS-LS4-1
7.
FLASHCARD QUESTION
Front
What is the significance of keystone species in an ecosystem?
Back
Keystone species are crucial for maintaining the structure of an ecosystem; their removal can lead to significant changes and loss of biodiversity.
Tags
NGSS.MS-LS2-2
NGSS.MS-LS2-4
NGSS.MS-LS2-5
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