New
New
Year 4

Changing environments: plants in danger

I understand that changes to environments can sometimes pose dangers to plants.

New
New
Year 4

Changing environments: plants in danger

I understand that changes to environments can sometimes pose dangers to plants.

Lesson details

Key learning points

  1. Plants depend on their environment to provide what they need to grow and survive.
  2. Changes to environments can cause danger to the plants within them.
  3. Scientists use several methods to count and study the number of plants in an environment including surveys and sampling.
  4. A quadrat can be used in different locations to help get an accurate estimate of plant numbers.

Common misconception

Children sometimes don't realise plants can be in danger as well as animals.

Share the examples in the slide deck and give pupils time to research other plants to discover there are lots of different plants in different environments that are in danger. If time, find out if any plants in your local area are in danger.

Keywords

  • Environment - The environment is the surroundings of a living thing, including other plants or animals, and the conditions they live in.

  • Endangered - An endangered plant or animal is one that is at risk of becoming extinct.

  • Estimate - An estimate is a quick calculation of what the size, value or amount of something might be.

  • Surveys - A plant survey involves counting the numbers of different plants within an area to gather information.

  • Quadrat - A quadrat is a simple device for marking out a small area.

Although this lesson's task is using data from provided quadrats it would be an excellent way to develop further disciplinary skills if the children went outside and used a quadrat in their local environment. Repeating this each year would build up some local data you could use in future lessons.
Teacher tip

Equipment

Worksheet with quadrat data.

Content guidance

  • Risk assessment required - outdoor learning

Supervision

Adult supervision required

Licence

This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

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6 Questions

Q1.
Which of these are plants?
Correct answer: grass
cricket
Correct answer: tree
Correct answer: cabbage
Q2.
Which of these things do plants need to grow and survive?
An image in a quiz
electricity
Correct answer: water
Correct answer: nutrients
Correct answer: light
Q3.
is the surroundings of a living thing, including other plants or animals, and the conditions they live in.
An image in a quiz
a habitat
Correct answer: an environmnent
a home
Q4.
What does endangered mean?
An image in a quiz
There are lots of that animal or plant alive in the world.
There are no more of that plant or animal alive anymore.
Correct answer: The animal or plant is close to being extinct.
Q5.
Which of these may cause an animal to become endangered?
An image in a quiz
Correct answer: loss of habitat
wildlife corridors
Correct answer: water pollution
building a wildlife pond
Q6.
Which of these things might a researcher do to find out how many living things there are in an environment?
Correct answer: use technology to survey a large area
guess how many living things there are
count how many things they can see in one small area and scale it up
Q5 CC-BY-SA 3.0 Acediscovery

6 Questions

Q1.
Plants depend on their to contain what they need to grow and survive.
An image in a quiz
house
Correct answer: environment
pots
Q2.
Which of these changes to an environment can cause danger to the plants within them?
An image in a quiz
planting seeds
Correct answer: polluted water
Correct answer: fishing boats
planting more trees
Correct answer: deforestation
Q3.
Match the plant to the change that is happening in its environment.
An image in a quiz
Correct Answer:titan arum (corpse flower),deforestation

deforestation

Correct Answer:sea grass,water pollution

water pollution

Correct Answer:Attenborough's pitcher plant,mining

mining

Q4.
Which methods are used by scientists to estimate the number of plants in an environment?
An image in a quiz
filtering
distillation
Correct answer: sampling
evaporation
Q5.
A is used to mark a small square area to count plants and estimate their numbers in a larger area.
An image in a quiz
Correct Answer: quadrat, a quadrat
Q6.
Why do researchers use sampling techniques to estimate the number or plants or animals in a habitat?
Correct answer: It can be difficult to count animals that move around.
It is more accurate than counting every plant or animal.
Animals are easier to sample because they are larger.
Correct answer: It is quicker than counting all the plants or animals separately.
Q2 © NASA Earth Observatory

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