Name: _______________________
Due: Thursday, January 30th
Forces that Change the Earth - Homework
http://www.brainpop.com
user name: wilmeth
password : longhorns
Brain Pop – Earth’s Structure
QUIZ SCORE: _______
Brain Pop – Volcanoes
QUIZ SCORE: _______
http://studyjams.scholastic.com
Study Jams – Earthquakes
QUIZ SCORE: ________
Watch the following music videos. List 2 “new to you” facts for each to
discuss in class this week:
Crust in Pieces
http://safeshare.tv/w/YpurvKGFNt
1. ________________________________________________________________
2. ________________________________________________________________
Mr. Lee’s Video/Rap http://safeshare.tv/w/EtXuyDzSDk
1. ________________________________________________________________
2. ________________________________________________________________
1. In your own words, explain the theory of Pangea, be sure to include plate tectonics and
continental drift.
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
_____________________________________________________________________
**SHOW YOUR WORK ON ALL MULTIPLE CHOICE QUESTIONS**
2. The Earth’s surface is not one solid piece of rock and soil, but is made up of large pieces
called plates. These plates fit together like pieces of a puzzle and are constantly moving.
Why can’t we feel the movement of these Earth plates?
A
B
The plates move very quickly.
The plates move very slowly.
C
D
The plates are too small to feel.
The plates are under the ground.
3. Explain the two ways that volcanoes could be created
(hint: use video & think back to the experiment we did in class):
Volcano #1: _______________________________________________________
_________________________________________________________________
_________________________________________________________________
Volcano #2: _______________________________________________________
_________________________________________________________________
_________________________________________________________________
4. In which of these ways can volcanoes help build up new land?
A
B
C
D
By adding heat to Earth’s surface
By adding gases to the atmosphere
By adding lava to Earth’s surface
By adding water vapor to the atmosphere
5. How does an area benefit from volcanic activity?
A.
B.
C.
D.
farmland and crops are destroyed
new land masses and islands are formed
poisonous gases are produced
roads are buried by flowing lava
6. A large wave that is formed out at sea by tectonic plate movement is called a tsunami.
What is the cause of a tsunami?
A. underwater volcano
B. underwater hurricane
C. underwater earthquake
D. underwater landslide
7. A scientist studying an area thinking that a powerful earthquake might have happened in the past.
Which observation MOST directly supports this hypothesis?
A.
B.
C.
D.
There are young lava flows covering the area.
A large rock formation looks like it broke and then moved.
The glaciers in the area are larger than they used to be.
There is a layer of coal with plant fossils in a canyon.
8. Earth’s surface is made of about a dozen very large “plates” that move around slowly.
Which landform is most likely to result when two of Earth’s plates collide with each other?
A. lake
B. cave
C. glacier
D. mountain
9. Which of the following best completes the table below?
Event
Change to Land
Earthquake
???
Landslide
Land overlaps over land
Volcano
New land created
A. land explodes
B. land melts
C. new land forms
D. crust fractures
**REVIEW of previous concepts**
10.This table shows the masses of several different objects.
Object
Mass (g)
Metal
Washer
1.5
Plastic
disk
34
Rock
16
Wooden
Block
22
Based on the observable evidence, which object will require the MOST force to
toss it 2 meters?
A. Rock
C. Metal washer
B. Plastic disk
D. Wooden block
11. Which of the following is the BEST testable hypothesis about the effect of a
force on an object’s motion?
A.
B.
C.
D.
Pulling a box is better than pushing it.
Objects that look heavy can exert more force than other objects.
The force needed to move an object increases as the object’s mass increases.
You can use a metric ruler to measure the force applied to an object.
12. An object is travelling in a straight line in space. No forces are acting on the
object. Based on this evidence, what will happen to the object’s motion?
A.
B.
C.
D.
It will move faster and faster because there is no force to stop it.
It will stop gradually because there is no force to keep it moving.
It will stop immediately when the force that started its motion has stopped.
Its motion will not change, and it will continue in the same direction at the same
speed.
13. Raul plans an experiment to test the effect of forces on an object. He
applied the forces shown in the diagram.
20 N
60 N
60 N
As a result of his experiment,what will Raul observe?
A.
B.
C.
D.
The box
The box
The box
The box
will
will
will
will
remain in its current position.
move downward in a straight line.
move right in a straight line.
move back and forth from left to right
14. Jordan dissolves sugar in water. She says that sugar must have changed into
another substance because it disappears. Which of the following could you use to
support or contradict Jordan’s claim?
A.
B.
C.
D.
Add sugar to different amounts of water to see if the same thing happens.
Add different amounts of sugar to water to see if it all disappears.
Let the water evaporate to show that the sugar is still present.
Heat the sugar-water mixture to see if it produces bubbles.
15. Write response on a separate sheet of notebook paper…
Kathryn has three metal cubes that look the same and are the same size. Write
procedures for an investigation that Kathryn can use to determine if the cubes are
made of the same substance. Be sure to include what tools she needs to use and how
will she decide if the substances are the same.
Bonus (not required, but a great “Above and Beyond” opportunity):
1. Log into www.discoveryeducation.com (login info on yellow card)
2. Search Magic School Bus: Blows Its Top (time is 23:56)
3. Watch entire show and write a paragraph stating what the show was
teaching you about (attach a paper separately on a piece of notebook paper or
typed)