WorksheetsTN READY Photosynthesis, Food Chains and Roles of Organisms
Total questions: 15
Worksheet time: 9mins
Which three statements correctly describe materials plants need?
Plants need sunlight to grow.
Plants need water to grow.
Plants need soil to photosynthesize.
Plants need carbon dioxide to photosynthesize.
Plants need oxygen to photosynthesize.
Which organisms get energy from crickets?
cattails and grasshoppers
cattails and frogs
shrews and frogs
grasshoppers and shrews
Which two energy flows are correct based on the students’
classifications?
Plant → Wolf
Plant → Deer
Sun → Deer
Sun → Plant
Earthworm → Wolf
Grade Science
SECURE
Which organisms are decomposers that should be added to complete the
food web?
Hawk and Earthworm
Tree and Fungi
Earthworm and Fungi
Squirrel and Bacteria
The energy that the organisms in this food chain use for growth began as
energy from the
cardinal.
cricket.
grass.
sun.
The model below shows a plant. Four of its structures are labeled. Which structure absorbs carbon dioxide during the photosynthesis process?
leaf (W)
stem (V)
roots (X)
petal (U)
A group of students is creating a model of an ecosystem. Which of the following organisms should the students select to act as a consumer?
Which of these correctly describes the relationship between plants and animals in the carbon dioxide-oxygen cycle?
Plants produce and release the oxygen that animals need to breathe
Plants produce and release the carbon dioxide that animals need to breathe
Animals produce and release the oxygen that plants need to make their own food
Animals produce and release the oxygen that plants convert to carbon dioxide
Analyze the model of the food chain below. Which type of organism would complete the food chain?
decomposer
producer
carnivore
herbivore
Blake’s fourth grade class is completing a lab on photosynthesis. Below is a model of the investigation.
Which of the following would represent the energy source for photosynthesis to occur?
lamp
gas
test tube
water plant
Decomposers are important in the food chain because they...
break down dead organisms and recycle nutrients into the soil.
stop the flow of energy from one organism to another.
produce their own food using light from the sun
are microscopic and other organisms cannot consume them.
Analyze the model below. Use it to help you answer the question.
Identify one labeled item from the model that uses energy from the sun to produce food.
fence
vegetables
bird
house
If there is a grass fire in this ecosystem, which organism MUST find another source of food energy in order to survive?
tree
beetle
mouse
caterpillar
Which of the following is an example of a food chain within this ecosystem?
Dragonfly nymph → Water flea → Tadpole
Guppy → Tilapia → Dragonfly nymph
Tadpole → Elodea → Guppy
Elodea→ Tadpole → Dragonfly nymph
Which statement accurately describes a relationship shown in the food web?
Trees are a producer for mice.
Mice are herbivores that consume (eat) grasses and are preyed on by elk.
Owls prey on rabbits and frogs.
Rabbits get their energy from owls and snakes.
