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Ecosystems and Biomes — Free MYP1 Sciences Practice Questions
1QuestionInteractions Between Biotic and Abiotic FactorsConcept Practice
2 marks~3 minCriterion D
A student plants bean seeds in two pots. Pot 1 has soil and water. Pot 2 has soil, water, and earthworms. After two weeks, the plants in Pot 2 are taller.
a
State one way farmers or gardeners could use this finding in real life. [1]
b
Describe one reason why using earthworms might not always work to improve plant growth. [1]
Solutions
2QuestionDefinition and Components of an EcosystemConcept Practice
2 marks~3 minCriterion A
The diagram below shows a pond ecosystem with five components labelled.
List each component under the correct heading: Biotic (living) or Abiotic (non-living).
Components: fish, water, rocks, sunlight, plants [2]
List each component under the correct heading: Biotic (living) or Abiotic (non-living).
Components: fish, water, rocks, sunlight, plants [2]
Solutions
3QuestionDefinition and Components of an EcosystemConcept Practice
2 marks~3 minCriterion B
A student sets up three jars with soil and plants. Jar A has 0 worms, Jar B has 5 worms, and Jar C has 10 worms. After two weeks, the student measures how tall the plants have grown.
a
Identify the independent variable in this investigation. [1]
b
Identify the dependent variable in this investigation. [1]
Solutions
4QuestionDefinition and Components of an EcosystemConcept Practice
4 marks~6 minCriterion C
A forest ecosystem contains the following:
Oak trees · deer tracks · moss · soil pH · air temperature · rainfall
Oak trees · deer tracks · moss · soil pH · air temperature · rainfall
a
List one biotic (living) thing from the list above. [1]
b
Identify two abiotic (non-living) things from the list above. [1]
c
A student says: "There are more abiotic things than living things in this ecosystem." Do you agree? Give a reason for your answer. [2]
Solutions
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