Open your survey notes from earlier in this project. Name one living thing you found and one thing it seemed to need or eat. Today we join those finds into food chains and a web.

That line of who-eats-whom is how energy from the sun travels across our school hedge.

Grass is eaten by a caterpillar, the caterpillar by a spider, the spider by a robin. That line is a food chain.

A plant that makes its own food from sunlight is called a producer. Every chain starts there. The arrow shows energy moving from the food to the eater (the energy began as sunlight trapped by the plant).

Look at the finished food chain on the desk at the front. Read it left to right. The plant at the start is a producer. Where does the energy start? Where does each arrow point?

Now watch one more short chain join on. When two chains share a living thing, they join up. That joined picture is what you will build next from your own survey.

Help put the cards in order on the board by calling out which card has to come first and which way each arrow should point. This is a quick check rather than a full rebuild, so keep the two rules in mind as you go: the plant starts the chain, and every arrow points to the eater. Then name one other plant from the school grounds that could start a different chain.

Use your survey notes and the cards. We will take one job at a time — only do the job showing on the board right now.

The evidence rule is that you may only use species you actually found in your survey, and if you did not see the eating happen, you write likely beside that arrow on your journal page.

When I call freeze, stop and leave your cards where they are.