Science lesson plan · 2nd grade (Year 3 in England) · 60 minutes
Frozen water on Earth: glaciers, ice sheets and icebergs
Earth and rocks
CCSS NGSS.2-ESS2-3England: KS1 Geography linksEngland: KS2 Y4 States of matter
Objective and success criteria
Students will: Frozen water on Earth: glaciers, ice sheets and icebergs.
- I can answer questions on today's skill on my own, without help.
- I can explain each step and say why it works.
- I can check my answer and spot a mistake.
Before and after
Needs first: Salt water or fresh water? Where Earth's water is
Leads to: the next skill in this area.
Materials: Rock samples, Hand lenses, Mini whiteboards, A diagram or short video clip of the idea, Printed student sheet (below).
Warm-up · 6 min
- Quick retrieval from earlier learning (Salt water or fresh water? Where Earth's water is). Students answer on mini whiteboards.
- Show answers together and note who needs support in the main task.
- Is this salt water or fresh water: a glacier? (salt water / fresh water) → fresh waterPrompt: Is it part of the sea, or does it come from rain, snow and rivers?
- Where is most of Earth's FRESH water? (in swimming pools / in rivers / frozen in ice sheets and glaciers / in clouds) → frozen in ice sheets and glaciersPrompt: Antarctica and Greenland are covered in thick ice.
- True or false? Oceans cover most of Earth's surface. (True / False) → TruePrompt: Oceans are salty. Where else is water found?
Hook · 6 min
- Pass round different rocks and ask how each one might have formed.
- Share the objective: Frozen water on Earth: glaciers, ice sheets and icebergs. Read the success criteria together.
I do: model it · 12 min
- Work through the example out loud, saying why you do each step, not just what you do.
- Example: Which description matches a glacier?
- Step 1: So the answer is: a huge river of ice that slowly slides downhill
- Answer: a huge river of ice that slowly slides downhill
- Pause after each step and ask a student to say what comes next.
We do: guided practice · 12 min
- Do these together. Students try each step on whiteboards before you reveal it.
- Use the hints as prompts rather than giving the answer.
- Which description matches frost? (soft ice crystals that fall from clouds / thin ice crystals that form on cold surfaces overnight / a layer of frozen seawater on the ocean surface / a huge river of ice that slowly slides downhill) → thin ice crystals that form on cold surfaces overnightPrompt: Think about where each one is found and how big it is.
- Is an iceberg made of salt water or fresh water? (fresh water, because it broke off a glacier made from snow / it has no water in it / salt water, because it is in the sea / it is made of sugar) → fresh water, because it broke off a glacier made from snowPrompt: Where did the ice first come from?
You do: independent practice · 17 min
- Students work on the student sheet. Circulate and check the first two answers of every student early.
- Students who finish: write a question of their own for a partner, with the answer.
The 8 questions are on the student sheet below, with answers in the key.
Exit ticket · 7 min
- Two questions on their own. Sort answers into got it / nearly / not yet to plan the next lesson.
- Glaciers in the Alps and the Rockies are shrinking. What is the main reason? (The mountains are growing. / People are taking the ice home. / Earth's climate is getting warmer. / It is snowing too much.) → Earth's climate is getting warmer.Prompt: What does warmth do to ice?
- Which description matches a glacier? (a huge river of ice that slowly slides downhill / a big piece of ice floating in the sea after breaking off a glacier / soft ice crystals that fall from clouds / ice that covers a whole land area, like Antarctica) → a huge river of ice that slowly slides downhillPrompt: Think about where each one is found and how big it is.
Watch out for
- Everyday meanings of words getting in the way of the science meaning: define key words explicitly.
- Remembering facts without the reason: ask "why?" and "what is the evidence?"
Support and stretch
Support
- Review first: Salt water or fresh water? Where Earth's water is.
- Use concrete materials: rock samples.
- Give the first step of each question, or a partly worked example to finish.
- Pair with a confident partner for the guided practice.
Stretch
- Explain a common mistake in writing and how to fix it.
- Write a word problem that uses today's skill, then solve a partner's.
Homework and more practice
Free online practice with hints and printable worksheets for this skill: eurekami.com/science/grade-2.
Free lesson plan from eurekami.com/lesson-plan-builder