Question

1. the first microscope was invented nearly 400 years ago. 2. the __ magnifies the image of the object. 3. the is the smallest, most basic unit of life. 4. everything, living or nonliving is . 5. all matter on earth is made of . 6. a is a force that holds atoms together. 7. a water molecule is made of two atoms and one atom. 8. which is bigger, a cell or an atom? 9. your own body has about cells. 10. what did robert hooke see through his microscope? 11. how many different elements are there? 12. who created gore - tex fabric? __

Explanation:

1. The first microscope was invented around the late 16th - early 17th century, approximately 400 years ago.
2. A lens magnifies the image of an object.
3. The cell is the smallest, most basic unit of life.
4. Everything, living or non - living is matter.
5. All matter on Earth is made of atoms.
6. A chemical bond is a force that holds atoms together.
7. A water molecule is made of two hydrogen atoms and one oxygen atom.
8. A cell is bigger than an atom.
9. The human body has about 37.2 trillion cells.
10. Robert Hooke saw cork cells through his microscope.
11. There are 118 different elements.
12. Gore - Tex fabric was created by Bob Gore.

Answer:

1. 400
2. lens
3. cell
4. matter
5. atoms
6. chemical bond
7. hydrogen; oxygen
8. a cell
9. 37.2 trillion
10. cork cells
11. 118
12. Bob Gore