Lesson Worksheet: The Biosphere Science • 5th Grade

In this worksheet, we will practice identifying and describing the biosphere and how human activities can negatively impact it.


What is the term given to a species that is introduced into a new environment and causes harm?

  • AAn endangered species
  • BA native species
  • CAn invasive species


Members of a community are planning to plant trees in a local field.

Which of these choices would be the best option?

  • AOnly planting species that are native to the area
  • BRandomly selecting a variety of species to plant
  • CSelecting species that are not usually found in that area


How does deforestation affect ecosystems?

  • AIt reduces the levels of greenhouse gases in the atmosphere.
  • BIt provides new homes for animals.
  • CIt forces forest animals to move out of their habitats.


Living things that are unable to get what they need to survive become endangered.

What is an endangered species?

  • AA species that is extinct
  • BA species that is dangerous in its habitat
  • CA species that is at risk of becoming extinct


Which of the following statements is true?

  • AEarth is the only planet in our solar system that has a biosphere.
  • BAll planets in our solar system have a biosphere.
  • CThe biosphere does not depend on any other Earth systems.


Fill in the blank: Species that have died out completely are said to be .

  • Aendangered
  • Bextinct
  • Cthreatened


Oil spills can have large effects on the biosphere.

Oil stain on the water, dirty sea

How would an oil spill in the ocean likely affect its animals?

  • AIt would cause many of them to die.
  • BIt would help them to reproduce.
  • CIt would have no effect on them.


Fill in the blanks: It is to undo the damage caused by deforestation because it takes a time for trees to grow.

  • Aeasy, short
  • Bdifficult, long
  • Cdifficult, short
  • Deasy, long


Fill in the blank: The Earth system composed of all living things in air, water, and land is known as the .

  • Ageosphere
  • Bbiosphere
  • Catmosphere


Matthew and Elizabeth are talking about the biosphere.

Who is correct?

  • AMatthew
  • BElizabeth

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