This document discusses different types of microscopy used in biology, including dissection, compound, scanning electron, and transmission electron microscopes. It also covers magnification and describes the Mohs hardness scale for minerals like talc, gypsum, calcite, fluorite, apatite, orthoclase, quartz, topaz, corundum, and diamond. Additionally, it notes that Mexico's Cave of Crystals contains some of the world's largest natural gypsum crystals up to 36 feet long and discusses atoms, compounds, and changes to atomic models over time.

1. Take a closer look MODULE A

2. Chapter 1 ExploringtheUnseen

3. Types of Microscopes There are four main types of microscopes that a biologist uses: dissection, compound, Scanning Electron Microscope (SEM), and Transmission Electron Microscope (TEM).

4. Magnification

5. MINERALS Moh´s Hardness Scale: 1.Talc Mg3Si4O10(OH)2 2. Gypsum CaSO4·2H2O 3. Calcite CaCO3 4. Fluorite CaF2 5. Apatite Ca5(PO4)3(OH,Cl,F) 6. Orthoclase KAlSi3O8 7. Quartz SiO2 8. Topaz Al2SiO4(OH,F)2 9. Corundum Al2O3 10. Diamond C (pure carbon)

7. CRYSTALS Mexico's Cueva de los Cristales (Cave of Crystals) contains some of the world's largest known natural crystals—translucent beams of gypsum as long as 36 feet (11 meters).

10. Chapter 2 Structure of Matter

12. Atoms The smallest particle that still characterises an element. Let's think about the physical building blocks of everything in the Universe. Particles of matter - Atoms - Elements - Molecules - Macromolecules - Cell organelles - Cells - Tissues - Organs - Systems - Organisms - Populations - Ecosystems - Biospheres - Planets - Planetary Systems with Stars - Galaxies - The Universe

13. Compounds

14. AtomicModelChanges