Science lesson plan · 5th grade (Year 6 in England) · 60 minutes
Graph where Earth's water is: salty, frozen and fresh
Earth and rocks
CCSS NGSS.5-ESS2-2England: KS2 Geography linksEngland: KS3 Chemistry: Earth and atmosphere
Objective and success criteria
Students will: Graph where Earth's water is: salty, frozen and fresh.
- 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: the Pacific Ocean? (salt water / fresh water) → salt waterPrompt: Is it part of the sea, or does it come from rain, snow and rivers?
- Why is it important to save fresh water? (Only a tiny part of Earth's water is fresh and easy to reach. / There is more fresh water than salt water. / Plants do not need water. / Fresh water is the same as seawater.) → Only a tiny part of Earth's water is fresh and easy to reach.Prompt: Most water is salty or frozen.
- True or false? Glaciers are made of salt water. (True / False) → FalsePrompt: 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: Graph where Earth's water is: salty, frozen and fresh. 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: About 97% of Earth's water is salty and 3% is fresh. If all of Earth's water were shrunk into 1000 litres, about how many litres would be fresh water?
- Step 1: 3 × 1000 ÷ 100 = 30
- Step 2: So the answer is: 30 L
- Answer: 30 L
- 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.
- About 97% of Earth's water is salty and 3% is fresh. If all of Earth's water were shrunk into 200 litres, about how many litres would be fresh water? → 6 LPrompt: Per cent means 'out of 100'.
- Only about 1% of Earth's fresh water is easy to reach in lakes and rivers. What should people do? (Pour waste into rivers. / Use water carefully and keep it clean. / Nothing; water never runs out. / Use as much as possible.) → Use water carefully and keep it clean.Prompt: It is a small and precious store.
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.
- About 97% of Earth's water is salty ocean water. If all of Earth's water were shrunk into 100 litres, about how many litres would be salty ocean water? → 97 LPrompt: Per cent means 'out of 100'.
- Only about 1% of Earth's fresh water is easy to reach in lakes and rivers. What should people do? (Pour waste into rivers. / Use as much as possible. / Use water carefully and keep it clean. / Nothing; water never runs out.) → Use water carefully and keep it clean.Prompt: It is a small and precious store.
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-5.
Free lesson plan from eurekami.com/lesson-plan-builder