Science Unit 4

Science: Unit 4 Lesson 3

Soak Up the Sun

• Producers are living things that make their own food.

• Photosynthesis is when plants use the energy from the sunlight to change water and carbon dioxide into sugars for food.

• All green plants are producers

Dinnertime

• Humans and animals need energy to live.

• Consumers are living things that eat other living things.

• Carnivores eat only meat

• Herbivores eat only plants

• Omnivores eat both plants and animals

Decomposers

• an organism that breaks down dead organisms for food

• earthworms, mushrooms, and bacteria

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Food Chains

• the path of food from one living thing to another

• predator are animals that hunt for other animals

• prey are hunted for food

• all food chains begin with a producer

Multiple Choice

What is the role of the producer in a food chain?

• to eat plants

• to make food

• to eat other living things

• to break down dead things

Multiple Choice

A bird kills and eats an insect for food and energy. Which best describes the bird?

• a predator

• a producer

• a herbivore

Multiple Choice

Which is a correct food chain?

• grass-oak tree-human

• grass-chicken-human

• human-chicken-grass

• chicken-grass-human

Multiple Choice

Living things that only eat plants are _____.

• carnivores

• consumers

• herbivores

• producers

Multiple Choice

Food Chain: green algea-small fish-sea lion-shark. How does the small fish get energy?

• by eating algea

• by eating the shark

• by eating a consumer

• by eating the sea lion

Multiple Choice

Living things that only eat meat are _____

• omnivores

• herbivores

• carnivores

• producers

Multiple Choice

Living things that eat plants and meat are _____

• omnivores

• herbivores

• carnivores

• producers