About this ebook
What you will learn
Fifteen working science models made from bottles, cartons, CDs, newspaper and other things people throw away, from a bottle windmill and a CD hovercraft to a syringe hydraulic arm, a solar oven, a rain gauge and an air-powered bottle rocket. Each project gives the materials, safe numbered steps and the science behind it, with tips on collecting materials safely and presenting the waste-management message.
Who it is for
Students of class 3 to 10, parents and teachers.
Chapters
Contents
- Chapter 1: Why reuse?
- Chapter 2: Collecting and cleaning materials safely
- Chapter 3: Air in motion
- Chapter 4: The power of pressure
- Chapter 5: Saving water
- Chapter 6: Strong shapes: the newspaper bridge
- Chapter 7: Sun and rain
- Chapter 8: Light and sound
- Chapter 9: Helping nature
- Chapter 10: Presenting the waste-management theme
Inside
At the end of the book
- Practice questions. To check what you have learnt, with the answers after them.
- Glossary. The key words of the book, each explained in one sentence.
- Easy English. Short sentences and everyday words, with each new word explained the first time.
How to use it
Reading, printing and sharing
- On a phone or computer. Tap Read online to open the book in your browser, or Download to keep it and read it without the internet.
- To print. The pages are A5, half the size of A4. Choose two pages per sheet in the print settings to fit two pages on each A4 sheet.
- To share. Send the link to this page, or the PDF itself, to friends, classmates or students. The book is free for everyone.
Safety first
Electronics in these books runs on cells and batteries of up to 12 V, never on mains electricity. Soldering, hot glue, cutters and chemicals need an adult nearby for younger students.