WorksheetsKnowledge Mastery Competition
Total questions: 20
Worksheet time: 10mins
Choose the biotic factor.
water
soil
plants
rocks
Determine the role of “fungi” in an ecosystem.
producers
decomposers
consumers
scavengers
Choose the answer that clarifies the meaning of a habitat
the place where organisms live.
all the organisms that live in an area.
all the members of one kind of organism.
.
none of the above answers.
What is the main source of energy in an ecosystem?
producers
consumers
decomposers
the sun
Grass ------ grasshopper ---------mouse----- owl
Determine the role of the mouse in the food chain.
producer
second
producer
second
consumer
r
decomposer
Decide which of the followings shows the amount of energy passed from one organism to another one.
energy pyramid
food web
food chain
food web
+
food chain
Exclude the one which is not a source of carbon dioxide.
evaporation process
breathing
burning process
decomposing process
Which type of succession could happen a volcano eruption?
secondary succession
primary succession
both primary and secondary successions
no succession happens.
Name the tool that you can use to measure the temperature of an object.
spring scale
pan balance
thermometer
ruler
Circle the wrong statement.
Scientists use “scientific method” to study the natural world.
Scientists must use all the steps of the scientific method in an order.
Scientists use data to support their conclusions.
Scientists ask more questions to get more answers and new ideas.
Name the main producers in all ecosystems?
Sun
Plants
Animals
Decomposers
Explain why do legume plants increase the fertility of the soil? Because …..........
they breakdown dead plants and animals.
they are producers
they grow deeply in the soil
the bacteria in root nodules can convert atmospheric nitrogen to nitrogen compounds
Define (endangered species)
they are dangerous organisms.
they are organisms under the risk of being extinct.
they are extinct organism.
they are abiotic factors.
Describe what is the independent variable in any experiment?
is the variable that the scientists can change during the experiment.
is the variable that scientists observe and measure during the experiment.
is the variable that scientists keep the same during the experiment.
the variable that scientists measure only during the experiment.
Name the tool which scientists use to measure weight in Newton unit.
spring scale
pan balance
digital balance
measuring tape
Give an example of a primary consumer in this energy pyramid
the hawk
the frog
the grasshopper
the snake
Define ( discovery)
is the process of inventing something for the first time
is the process of finding something for the first time.
is state a conclusion
none of the above answers is correct
Name the process scientists use to answer questions?
make a hypothesis
draw a conclusion
reliable resources
scientific method steps.
Explain what do plants do during respiration process?
take in oxygen and release carbon dioxide
take in carbon dioxide and release oxygen
take in oxygen and release sugar
take in nitrogen and release carbon dioxide
Name the tool that Muslim scientists use to observe Helal Ramadan
telescope
microscope
spaceship
nicked eyes
