Food-chain change investigation

BUILD Science Autumn1 W7B Food Chain Investigation Pupil

PUPIL WORKSHEET

Food-chain change investigation

Autumn 1 · Week 7 · Lesson B

Name: ____________________________ Date: __________________

Build two food-chain models, repair arrow errors and make qualified predictions about a reduced plant food source.

Use this sheet with the lesson. You may point, sign, speak, draw, write, dictate or direct an adult. Keep your first idea so you can show what changed.

1. Build two chains

Use each feeding clue to build and label a model.

PUPIL TASK / Autumn 1 · Week 7 · Lesson B

2. Diagnose and repair an arrow

Write, draw, point or dictate as agreed with your teacher.

Turn one arrow the wrong way. Describe what that direction would mean, then use the supplied clue to repair it.

Wrong arrow: ___ → ___.

It would pass food from ___ to ___.

The clue says ___.

Corrected arrow: ___ → ___ because ___.

PUPIL TASK / Autumn 1 · Week 7 · Lesson B

3. Predict a model change

Write, draw, point or dictate as agreed with your teacher.

Cover the plant card in each model. Use might/could and explain the food link.

PUPIL TASK / Autumn 1 · Week 7 · Lesson B

4. Improve your explanation

Write, draw, point or dictate as agreed with your teacher.

Keep first reasoning, then revise one detail using a clue. Choose an exit question.

My first explanation: ___.

My improved explanation: ___.

One limit of this model: ___.

Exit: how could fewer plants affect an animal that does not directly eat them?

Choose a response route

Agree one route with your teacher; you do not need every route.

Supported

Build/direct both chains with an adult reader, repair one arrow and choose a prediction.

Standard

Label both chains, justify arrow repair and explain one possible indirect effect.

Stretch

Compare both changes and explain why the model cannot predict exact animal numbers.

Keep the evidence for the following week. The separate Week 8 enrichment is outside this pack.

Source: Science_Teesside/Teaching_Packs/BUILD/lessons/W7B/BUILD_Science_Autumn1_W7B_Food_Chain_Investigation_Pupil.docx

BUILD Science Autumn1 W7 Cards and Labels

PRINTABLE CARDS / WEEK 7

Two-chain organism labels

Cut along the table lines, or point to a card without cutting.

Use paper models only. Leaves represent part of a green producer plant. Real animals can have other food sources.

Print only the sets you need. Adult preparation is an alternative to pupil cutting. These are original teaching labels and simplified models.

PRINTABLE CARDS / WEEK 7

Chain arrows and role labels

Cut along the table lines, or point to a card without cutting.

Arrows go from food to the eater; they show food and energy passing. Adult may cut four arrows, or pupils may draw/direct them.

Print only the sets you need. Adult preparation is an alternative to pupil cutting. These are original teaching labels and simplified models.

PRINTABLE CARDS / WEEK 7

Feeding evidence

Cut along the table lines, or point to a card without cutting.

Read each clue before arranging arrows. The links are examples rather than complete diets.

Print only the sets you need. Adult preparation is an alternative to pupil cutting. These are original teaching labels and simplified models.

PRINTABLE CARDS / WEEK 7

Model-change prompt

Cut along the table lines, or point to a card without cutting.

Use an opaque paper cover over the plant card. This is a hypothetical change, not a real experiment or measured result.

Print only the sets you need. Adult preparation is an alternative to pupil cutting. These are original teaching labels and simplified models.

Source: Science_Teesside/Teaching_Packs/BUILD/resources/BUILD_Science_Autumn1_W7_Cards_and_Labels.docx