PAST SIMPLE (INTERROGATIVE FORM)

 Watch this video to learn more about the interrogative form of the past simple.

Review the past simple with this interactive worksheet:

OTHER RELATIONSHIPS IN ECOSYSTEMS

Apart from food chains, there are other relationships between living things in an ecosystem.

RELATIONSHIPS WITHIN THE SAME SPECIES

RELATIONSHIPS BETWEEN DIFFERENT SPECIES

Now you are ready to complete this interactive worksheet:

PAST SIMPLE (REGULAR VERBS)

We use past simple to talk about a completed action in a time before now (it happened in the past). 

Watch these videos to learn more about the past simple of regular verbs.

INTERACTIVE WORKSHEETS

FOOD CHAINS AND FOOD WEBS

In every ecosystem, all the living things need to find food. According to how they obtain  food, living things in ecosystems are producers or consumers.

We use food chains to show how living things feed on other living things in an ecosystem. Food chains show pictures of the living things, joined by arrows. Food chains always start with a producer. 

We use food webs to show more than one food chain in an ecosystem.

INTERACTIVE WORKSHEET

ECOSYSTEMS

 An ecosystem is a community of living things that live together in a particular habitat.

It has three components: living things + physical environment and their relationships.

All living things belong to a species. A population is all the living things of the same species in an ecosystem. A community is all the different populations that live together in the same ecosystem.

Local council and local services

Every village, town or city is called a municipality. Every municipality has a local council, that is the government that represents all the people.

How can we be responsible citizens?

What are local services?

There was / There were

 Watch these videos to review this part of grammar:

Now try to practise with these interactive activities: