WorksheetsCycling of Matter in Ecosystems
Total questions: 36
Worksheet time: 18mins
1. Why isn’t it healthy to just eat candy?
It rots your teeth, which affects your heatlh.
High calories, Low Nutrition.
Low Calories, High Nutrition.
It isn't. Candy is a great source of nutrition.
True or False: Humans can eat bugs for food?
True
False
What is Photosynthesis?
Sugar breaking down into oxygen.
Intake of carbon dioxide and emitting oxygen.
Process a plant uses to make its own food.
Process of organisms making high energy through their bodies.
Where does the energy in a hamburger come from originally?
The sun
The soil
The cow
The calories in the hamburger
True or False: Flamingos are pink because they eat things that are pink?
True
False
What the three main things our bodies use food for?
Growth, sleep, energy
Move, repair, growth
Energy, sleep, move
How does our body tell us when we need more energy?
It gets sick
Hunger
Thirst
Fatigue
What size can an ecosystem by?
Only as large as the largest species.
Only as small as the smallest species.
Any size: as small as a water drop to as large as a forest
You cannot measure an ecosystem.
True or False: Animals eat other animals to get energy and building blocks to help them grow and repair?
True
False
Which is an example of a producer?
Lettuce
Mouse
Human
Fish
What is an animal that eats producers called?
Consumers
Producers
Decomposers
Photoautotrophs
What is a Food Web?
A system of connected food chains.
Control of a population by one species.
A nonlinear system that is not connected.
A collection of species.
True or False: A zebra is an example of an apex predator?
True
False
What roles do apex predators play in ecosystems?
They are the bottom predators, so they don't have much of an impact.
Control the population of everything below them.
Middle of the food chain so they are either a predator or a prey.
They do not help the ecosystem.
What do decomposers do?
Control overpopulation of organisms.
Provide energy to other organisms.
Break apart dead organisms to give nutrients back to producers.
Eat other organims.
What is a community of interacting organisms and their environment called?
Ecosystems
Biomes
Food Web
System
True or False: Only living things interact in an ecosystem?
True
False
What might an organism do if there is a change to its ecosystem?
Move
Die
Survive
All the Above
What is a living thing that is not normally found in the ecosystem called?
Invasive species
Pathogen
Native
Foreign Object
Food or almost any kind can be traced back to what?
Fossils
Ancient History
The moon
The sun
ENERGY ____ through ecosystems and MATTER ____through ecosystems.
Cycles, flows
transmits, recycles
flows, cycles
recycles, transmits
Unlike energy, matter is ____ in ecosystems?
destroyed
resolved
recycled
replaced
True or False: Living organisms release heat into the atmosphere. This is because of the energy they are giving off.
True
False
Where do most ecosystems get their energy?
From the sun
From the earth
From their own ecosystem
From all living things
Energy can't be ____ or ____. It can only change form or be ____.
Transferred, destroyed, created.
Created, destroyed, transferred.
Wasted, created, invented.
Invented, wasted, created.
All living things use energy constantly to ______?
breathe
grow
eat
survive
At each level of the food chain, a lot of energy is lost. What percentage isn't lost?
25%
10%
15%
35%
_____ are the producers and _____ are the consumers.
Plants, animals
Animals, plants
Organism, species
Species, organism
What do decomposers eat?
Living things
Things in the ocean
Dead matter
Zooplankton
What are organisms that use the food energy that was created by producers called?
Producers
Consumers
Decomposers
Photoautotrophs
What are organisms that produce their own food called?
Producers
Consumers
Decomposers
Photoautotrophs
True or False: Animals can use sunlight, water and carbon dioxide to make food as plants do?
True
False
Matter cycles between
Animals and humans
Sand and oceans
air, soil, among plants and animals
Clouds and the atomosphere
Where does plant matter come from?
Carbon from air
Carbon from water
Hydrogen from air
Hydrogen from water
Plants make food for themselves and every other animal on earth using?
Chloroplasts, hydrogen and energy
Chlorophyll, sunlight, water, and carbon dioxide
Sunlight, carbon dioxide, fruit, and stems
Flower, roots, leaves and soil
Where does photosynthesis occur?
In the stems
In the roots
In the chlorophylls
In the chloroplasts
