It’s a small world!
Name ………………………………
Work with a partner to complete this sheet.
Draw a line 1 cm long.
How many hydrogen atoms would fit side-by-side along this line?
Complete the table with:
 the names and sizes of five or six things you or your partner can see, but are very small
 the names and sizes of five or six things that are too small to see with our eyes.
Small items we can see
Size
Small items we can’t see
Size
Questions
1. What is the smallest size we can see with our eyes?
2. Why can’t we see the things in the second table?
3. What are all these small things made from?
4. What does this tell us about the size of atoms?