Energy and Matter in Ecosystems

What is a producer? 

• Organism that creates their own food.
• Organism that eat other organisms for energy
• Organism that eat other dead organisms

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Where do producers get their energy from?

• the ground
• other animals
• decomposers
• the sun

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What is a consumer? 

• Organism that creates their own food.
• Organism that eat other organisms for energy
• Organism that eat other dead organisms

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What is a decomposer? 

• Organism that creates their own food.
• Organism that eat other organisms for energy
• Organism that eat other dead organisms

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Who is the producer in this food chain?

• Grass

• Grasshopper

• Mouse

• Owl

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Who does the grasshopper get energy from?

• Grass

• Grasshopper

• Mouse

• Owl

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Who does the owl get energy from?

• Grass

• Grasshopper

• Mouse

• Owl

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The Law of Conservation of Energy states:

• Energy can created or destroyed but not transformed 
• Energy cannot be created or destroyed, it can only transformed
• Energy can't be created, destroyed or transformed

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According to the Law of Conservation of energy, the amount of energy before and after a reaction must be the same. Which statement below is true?

• The total amount of energy is conserved
• The total amount of energy is less after a reaction
• The total amount of energy is more after a reaction

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What is the Law of Conservation of mass?

• Mass is created in a chemical reaction
• Mass is created in a physical change
• New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
• Mass is never created or destroyed

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