1. Scientific Models, part 3 August 25, 2015 (1.2 in your books – pre-quiz today)

2. Meme Moment

3. Scientist of the Day

4. Chris Hadfield Saw the Apollo 11 moon landing when he was 9 and decided to be an astronaut Test pilot Engineer & astronaut Former commander of the ISS Kept a space diary Retired because he promised his family they’d move home Wants to go one-way to Mars

5. Why might inductive reasoning be wrong? Inductive reasoning is useful (because it’s reasoning, not just wildly guessing), but it often draws the wrong conclusion. Inductive reasoning has to be backed up with more data. Example: This man has a beard. Graduate students are more likely to have beards. A razor is needed to remove a beard. Orthodox Jews grow beards. Hipsters like beards. Which piece of information leads to the right conclusion?

6. What if you get it wrong? Science fixes itself! Even when we get stuff wrong, we often learn more about the problem in the meantime It’s especially important to test conclusions from inductive reasoning with new experiments This week, we’ll talk about designing experiments from scratch and plan our first explosion!

7. What makes a good experiment? What are we looking for? What do we expect to observe? How could we record that? (8 th grade: how could we measure that as empirical evidence?) What variables do we have? What controls do we have?

8. Friday Make a note! 2L bottle of any soda 1 roll of any Mentos or similar candy Optional: poncho

9. Questions Any questions about the slides? Any new questions?

10. Questions from Last Week Is there anti-venom for komodo dragons? I’m still not sure. One source said yes, another no. What type of oryx was reintroduced? Arabian oryx (Oryx leucoryx) into Oman, Bahrain, Saudi Arabia, Qatar, Jordan, Israel Are daddy longlegs the most poisonous type of spider? No. And spiders usually aren’t poisonous. Poisonous is if you eat it. Venomous is if it stings or bites and injects venom that way. http://spiders.ucr.edu/daddylonglegs.html 6 th grade

12. Questions from Last Week Are daddy longlegs a type of spider? It depends. 3 different types of bugs are called “daddy longlegs” insect – crane fly arachnid, but not a spider (the usual daddy longlengs) arachnid, cellar spider 6 th grade

13. Questions from Last Week Are bush babies and lemurs types of monkey? No, bush babies, aye-ayes, and lemurs are “prosimians” (actually in different suborders) 6 th grade