Warm-up • Page: 29, 1. Earth is unique; it’s the only planet

in solar system that has _______ _______ on

its surface.

Liquid water

• Page: 29, 2. Approximately ________ of Earth

surface is covered with a relatively thin layer

salt water.

71%

• Page: 29, 3. Earth’s circumference at its

equator is equal to _____________.

40,074 km

Warm-up – use notes – class knowledge

1. What branch of Earth science would study the

Exosphere?

Astronomy

2. A hydrologist would study the ______ waters

of Earth.

Fresh

3. Name the branch of Earth science that would

study clouds?

Meteorology

Warm-up

• Page: 33, 1. Two of the most basic components of the

Universe are ___________ and ___________.

Matter & Energy

• Page: 33, 2. Matter is anything that has _______ and

takes up __________.

Mass, Space

• Page: 35, 3. What are the 4 spheres of Earth that

scientist study?

atmosphere, hydrosphere, geosphere, biosphere

Activity:

• Warm ups

• Mass lab

• Complete conversion section of h.w.

• Notes and discussions intro to density

demonstrations

• Today’s Objectives: S.W.B.A.T. Day 1

• Observe demonstrations on density

• Discuss how to calculate volume: 2 methods

• Copy and discuss notes on density calculation

• Define density

• Complete mass lab – using triple beam

balance

• Review material unit 1 for assessment

• Convert units of mass, volume and length

review

Objectives: swbat

Day 2

• Review how to calculate volume

• Define density

• Calculate density of two wooden blocks &

two rocks

• Understand connection of floating objects

based on density

activities

• Warm-up

• Complete density notes

• Complete density lab with teacher

• Review for unit 1 assessment

What is Density?

Calculating Volume

(amount of space of an object)

• Volume of a box = length X width X height

Answers are in cubic centimeters (cm³)

• ** Important note – one cubic centimeter

(cm³ or cc) in the metric system SI also =

one milliliter (ml) of water.

• And

• One milliliter of water or one cubic

centimeter of water = one gram in

weight/mass.

Therefore

• It is possible in the metric system to weigh

a tank of water by measuring it with a

meter stick.

• How do we measure the volume of an

irregular object?

“like a rock”

• Use the displacement method (2 ways)

1. Use a beaker or graduated cylinder

The difference in change of water level

after placing the object in water in the

volume.

2. Use overflow can, drop object into can

filled with water and catch all the water

from the spout in a graduated cylinder.

The volume is the amount of water that

flowed out.

Density – “an important physical

property of matter”

Defined – a measure of the amount of

matter (mass) that occupies a particular

space (volume)

• If a lot of matter is held or contained in a

small area it is said to have a high density

(gold, lead, mercury)

• The equation for density is

Density = mass ÷ volume = m/v The SI

metric units are

expressed in gm/cm³ or gm/ml

• Water has a density of 1 gm/cm³

• Density numbers that are higher than one

sink, lower than one float.

Dead Sea – high density

Great salt lake - Utah

Crossword/worksheet time

Cool down

1. What branch of Earth science would study

volcanos?

Geology

2. In the computer lab today scientist made a

boat that was propelled like what kind of animal?

Penguin

.

Cool down1. If you stood on the moon, how much would

your mass change?

Your mass would not change, -

you weight would …

2. 4 liters would be how many milliliters?

4000 milliliters

Cool down

1. What weighs more a pound of feathers or a

pound of rocks?

They weigh the same

2. What is the boiling point of water on the

Fahrenheit scale?

212 º F