Scientific Models, part 4

August 26, 2015(1.2 in your books)

Meme Moment

Quiz Tomorrow!• Study your vocabulary sheets & pre-quiz key.

• Sections 1.1 & 1.2

• Don’t panic – it’s just a quiz, so it’s not many points.

• Experiment Friday!

Scientist of the Day

Biruté Galdikas• Wanted to work with Louis

Leakey, a famous scientist• Sent to Indonesia to study

orangutans• Lived in a tiny hut• Learned more about

orangutans than anyone• Conservationist who started

rehab programs to return orangutans to the wild

Group Work1. What are we looking for?2. What do we expect to observe?3. How could we record that? (8th grade: how could

we measure that as empirical evidence?)

4. What variables do we have?5. What controls do we have?

6. What are your hypotheses? (this is the plural of hypothesis)

Friday

• Make a note!

• 2L bottle of any soda• 1 roll of any Mentos or

similar candy• Optional: poncho

Questions• Any questions about the slides?

• Any new questions?

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

6th grade

6th grade

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

6th grade

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)

6th grade

New Questions• How long do ant eggs take to hatch?I’m not sure, but it takes 6-12 weeks to go from egg to adult ant, and there’s a stage in between where they look like grains of rice with a dot at the end.

eggs pupae

New Questions• What is the most venomous snake?Black mambas and coastal taipans are the most dangerous for being a mix of really venomous and living close to humans.

Black mamba Coastal taipan

New Questions• How old is Stephen Hawking?He is 73, and his birthday is January 8, 1942.

• What causes ALS?Inherited 5-10% of the time, the rest of the time it just happens. Researchers think it might be gene mutations, an autoimmune disorder, or a chemical imbalance.