How to keep the world safe?
Kai Pata, Lilian Kivi, Milvi Roosleht, Marju Piir
Math: Marika Vares, Kaie Kubri
Pictures: Liina Tuuling, Arttoday
Grade 3
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How to keep the world safe? |
Grade 3 |
| eWorksheets | ||||
| 1. How to keep the world? | 1.eWorksheet | 2.eWorksheet | math | |
| 2. Earth's atmosphere | 1.eWorksheet | 2.eWorksheet | math | |
| 3. Air | 1.eWorksheet | 2.eWorksheet | 3.eWorksheet | math |
| 4. Forests are the lungs... | 1.eWorksheet | 2.eWorksheet | math | |
| 5. Air pollution. | 1.eWorksheet | 2.eWorksheet | math | |
| 6. Greenhouse efect | 1.eWorksheet | 2.eWorksheet | math | math |
| 7. Acid rain | 1.eWorksheet | math | ||
| 8. Lichenes and air pollution | 1.eWorksheet | math | ||
| 9. How much water? | 1.eWorksheet | 2.eWorksheet | math | |
| 10. Water pollution | 1.eWorksheet | 2.eWorksheet | math | |
| 11. Oil | 1.eWorksheet | 2.eWorksheet | math math | math |
| 12. Water cycle | 1.eWorksheet | math | ||
| 13. Story about water | 1.eWorksheet | math | ||
| 14. Fresh water | 1.eWorksheet | 2.eWorksheet | math | |
| 15. Rubbish | 1.eWorksheet | 2.eWorksheet | math | math |
| 16. Revision | 1.eWorksheet | math | ||