Pesticides

Description

Pesticides: Classification and Toxicity — Chemistry Chapter Presentation Slides: 13 | Audience: High school / early-college chemistry, environmental science, or applied biology students | Format: Editable PowerPoint (.pptx) | Series: Chapter 7 of The Chemistry Spirit (Pesticides) Before you can talk about the chemistry of specific pesticides, you need the vocabulary — what counts as a pest, how we classify the substances we use against them, and how we actually measure how dangerous a chemical is. This chapter delivers that foundation. Students meet LD₅₀ as a proper scientific tool, learn the crucial difference between toxicity (a fixed property) and hazard (what happens in real use), and finish with the nine practical rules that keep pesticide chemistry from becoming a personal-injury story. It's the setup chapter that makes every subsequent pesticide discussion honest.