8.5E, 8.5I, 8.4C
Flashcard
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Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
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1.
FLASHCARD QUESTION
Front
What is the Law of Conservation of Mass?
Back
The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction. The total mass of the reactants equals the total mass of the products.
2.
FLASHCARD QUESTION
Front
Define 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.
3.
FLASHCARD QUESTION
Front
What is photosynthesis?
Back
Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll, converting carbon dioxide and water into glucose and oxygen.
4.
FLASHCARD QUESTION
Front
Explain the difference between a food chain and a food web.
Back
A food chain is a linear sequence of organisms where each is eaten by the next one, while a food web is a complex network of interconnected food chains in an ecosystem.
5.
FLASHCARD QUESTION
Front
What is a producer in an ecosystem?
Back
A producer is an organism that can make its own food through photosynthesis or chemosynthesis, serving as a primary source of energy for other organisms in the ecosystem.
6.
FLASHCARD QUESTION
Front
Define a consumer in ecological terms.
Back
A consumer is an organism that cannot produce its own food and instead obtains energy by eating other organisms, which can be plants (herbivores) or other animals (carnivores and omnivores).
7.
FLASHCARD QUESTION
Front
What is a decomposer?
Back
A decomposer is an organism, such as bacteria or fungi, that breaks down dead organic material, returning nutrients to the soil and completing the cycle of matter in an ecosystem.
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