1. CHAPTER 2: LIVING THINGS SECTION 1, PART 2

2. Warm-Up: Please have a seat and take your LROD paper out. Write the HW in your planner Learning Goal(s): Identify and describe the needs of living things. Agenda: 1.Warm-Up/Review Tonight’s HW 2.Complete today’s LROD 3.Make Day 2 observations for the Please Pass the Bread Lab 4.Check pg. 19 Crossword Puzzle and “Pasteur’s Experiment Worksheet” (pg.22 in Unit 1 Packet) 5.Finish class notes on Chapter 2, Section 1 HW: Complete vocabulary for Chapter 2, Section 1 and Section 2 on pg. 14 of unit packet for Monday, 9/14 LROD Week #2 Quiz on Monday, 9/14

3. THE NEEDS OF LIVING THINGS All living things need ----- Water Food Living space Stable internal conditions

4. WATER All living things NEED WATER TO SURVIVE. WHY? Organisms need water to… Obtain chemicals from their surroundings Break down food Move substances within their bodies Reproduce

5. FOOD Organisms use FOOD AS THEIR ENERGY SOURCE. Plants: Capture the sun’s energy and use it for food Organisms that make their own food are called AUTOTROPHS Examples: grass, moss, algae, trees, flowers… Organisms that CANNOT make their own food are called HETEROTROPHS Examples: animals, mushrooms, and slime molds…

6. LIVING SPACE All organisms need a place to live Its surroundings MUST PROVIDE WHAT IT NEEDS TO SURVIVE How do trees compete for space? Top of the trees for SUNLIGHT Below the ground for WATER AND NUTRIENTS Come up with an example on your own!

7. STABLE INTERNAL CONDITIONS Organisms must be able to keep conditions inside their bodies STABLE, EVEN WHEN CONDITIONS IN THEIR SURROUNDINGS CHANGE SIGNIFICANTLY. This is called….. HOMEOSTASIS Example: Your body temperature stays steady even when there are changes in air temperature.