Day 125 of 180Week 25 of 36, FridayThird quarter

Why a cactus has spikes

๐Ÿ”ฌ Science๐Ÿ” Practiseโฑ๏ธ about 20 minutes

Compare a cactus with a leafy plant and explain the difference in terms of water.

Reps on something already met. Short, and worth doing even on a bad evening.

Today is rung 4 of 5 on this topic

How plants and animals survive

Can do: Explains how an animal's body parts help it survive, and that young animals resemble their parents.

Why it matters

It's the first version of structure-and-function โ€” the idea that a body part exists *because* of what it does โ€” which runs all the way to A-level biology.

What it looks like when it's wobbly

Describes what an animal looks like without ever linking a feature to a purpose.

โฑ๏ธ Two-minute check

"Why does a duck have webbed feet? Why does a cactus have spikes instead of leaves?"

Solid looks like: A purpose for each, even a rough one โ€” swimming, protection, saving water.

The full activity for this topic ยท 15 minutes

Design an Animal

PaperCrayons
  1. 1Pick a hard place to live: the desert, the deep sea, the Arctic.
  2. 2List what's difficult about it: no water, no light, no warmth.
  3. 3They design an animal for it and label each body part with its job.
  4. 4Compare with a real animal that lives there and see what nature did instead.
  5. 5Look at a young animal and its parent in photos, and list what's the same.

If it's too hard

Look at a real pet or a bird outside and name three body parts and their jobs.

If it's too easy

Explain why the same animal would die somewhere else, feature by feature.

Say this

"What is that part *for*? Everything on an animal has a job."

Science practice

Week 25 at a glance

  1. Monday ยท Day 121

    ๐Ÿ“– Reading

    Beginning, middle, end in writing

  2. Tuesday ยท Day 122

    ๐Ÿ”ข Math

    Beat the timer

  3. Wednesday ยท Day 123

    โœ๏ธ Writing

    Write it for a reader

  4. Thursday ยท Day 124

    ๐Ÿ”ข Math

    Plan a small budget

  5. Friday ยท Day 125

    ๐Ÿ”ฌ Science

    Why a cactus has spikes

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