Energy& Living Things
What do all living things need to carry out their life proceses?
Energy
What do we call organisms that make their own food? Give one example
Producers - plants, trees, flowers, grass
What process do plants use to make their own food?
Photosynthesis
What is an ecosystem?
A community of interacting organisms and their environment?
What comes after teh sun in a food chain?
Producers
Name one activity you did today that required energy
Ex: eating, breathing, walking, talking
What type of consumer eats only plants? Give one example
Herbivore - rabbit, grasshopper, horse, cow
What type of energy do plants capture from the sun during photosynthesis?
Solar energy
Abiotic
What do the arrows in a food chain represent?
The direction energy flows
What type of energy do living things use to carry out life processes?
Chemical energy
What type of consumer is a bear?
Omnivore
Name two ingredients plants need for photosynthesis.
Water, sunlight, carbon dioxide
Give 2 examples of biotic factors in an ecosystem
Grass, birds, insects, flowers, animals
Put these in the correct order: grass, snake, sun, fox, rabbit
Sun → grass → rabbit → snake → fox
According to the law of conservation of energy, what happens to energy?
Energy can't be created or destroyed, only transferred or transformed
What role do decomposers play in an ecosystem?
They break down dead plants and animals and return nutrients to the environment
Write the word equation for photosynthesis.
Carbon dioxide + water → sugar (glucose) + oxygen
List 3 things all living things need to survive
What is the difference between a food chain and a food web?
A food chain shows one path of energy; a food web shows all connected food chains
Why is the sun considered the original source of energy for almost all life on earth?
Plants capture solar energy from the sun and all food chains start with plants
Humans are consumers. Explain how humans obtain energy and name the molecule that provides it.
Humans eat food; the sugar molecule is glucose
How does photosynthesis help support consumers in an ecosystem?
It produces glucose that consumers get energy from when they eat plants or other animals
Explain the difference between biotic and abiotic factors and give 1 example of each
Biotic = living (plants); Abiotic = nonliving (sun, water)
Name 1 way natural hazards OR 1 way humans can harm ecosystems and explain how.