Learning outcomes

Question 0

Derwin’s theory on natural selection?

Answer 0

For example: when a bird grows wings and learns how to fly, it’s young will also inherit this being as a advantage. The ones who do no inherit this advantage will die off leaving the best to the best.

Question 1

3 domains in which all living organisms are classified as

Answer 1

Bacteria, archaea, eukarya

Question 2

What is an element ? And give 3 examples

Answer 2

A pure substance

Ex: hydrogen, gold, and phosphorous

Question 3

What is a compound and give an example

Answer 3

Two or more elements combines to create something new.

Ex: h2o is a compound of 2 hydrogen molecules bonded with a molecule of oxygen to create water.

Question 4

What is the atomic number made of ?

Answer 4

Protons + electrons

Question 5

What is the atomic mass made of ?

Answer 5

Protons plus neutrons

Question 6

What is a isotope ?

Answer 6

Removal or addition of neutrons

Question 7

What is an ion?

Answer 7

Removal or addition of electrons

Question 8

What is the difference between an isotope and an ion. ?

Answer 8

Isotope is neutrons and ions are electrons

Question 9

4 emergent properties of water

Answer 9

1. Cohesion and adhesion
2. temperature moderation
3. freezing
4. versatile solvent

Question 10

What are some characteristics of a acid ?

Answer 10

• sour
• reacts with metals to form H2
• reacts with bases to form salt and water.

Question 11

What is the pH range for:
Acid:
Base:
Neutral:

Answer 11

Acid:0-6
Neutral:7
Base:8-10