Lesson 1 Lecture Notes

Question 1

What are the characteristics of living things?

Answer 1

growth
Reproduction
organization
response
requires energy

Question 2

the scientific method has how many steps?

Answer 2

Five;

1. state the question
2. research
3. hypothesis
4. test
5. conclusion

Question 3

are there limitations to the scientific method?

Answer 3

Yes;

1. question is too broad
2. poor technique
3. incomplete experimentation
4. atypical specimen
5. bias

Question 4

What about the sun makes it a characteristic to support life on earth?

Answer 4

1. the correct distance away

2. a stable source of energy

Question 5

What about the earth’s rotation makes it a characteristic to support life on earth?

Answer 5

it rotates on its axis.

Question 6

What about the atmosphere makes it a characteristic to support life on earth?

Answer 6

it is the right kind of atmosphere

Question 7

What about the core of the earth makes it a characteristic to support life on earth?

Answer 7

the magnetosphere

Question 8

What about water makes it a characteristic to support life on earth?

Answer 8

there’s plenty of it; over 70% of the planet’s surface

Question 9

What is the polarity of water?

Answer 9

each water molecule has a positive charge on one side and a negative charge of the other side. (weak)

Question 10

Why is water the universal solvent?

Answer 10

many substances can dissolve into water because of its weak magnetic charge

Question 11

Water can enter what three different states?

Answer 11

solid, liquid, gas

Question 12

Why is it important that water expands when it freezes?

Answer 12

it helps ice to float, so that whole bodies of water don’t freeze.