Marshfields School
Science Department
Homework Booklet
Year 8
Rock Cycle
Name:
__________________
Teacher: __________________
1
Rocks
S U O E N G I C T C O N T R A C T N E M I D E S W
K A G D C N O I S O R E W G W A X X U W W Q A F E
N O I
T A T N E M E C M C R Y S T A L L
T R A N S P O R T A T
I O N D E P O S I
I S E D A
T L N X T
N N H R C Y Q D F B B N U S E D I M E N T A R Y H
U N O M Z V C G V X H E P O R O U S P F P V S G E
A C I A A Y T D G X A R F O S S I
L S X Y A H U R
K Q N A I G H O X D N A L V E H E K E X E M U Z I
C I H P R O M A T E M L K R D E T A N O B R A C N
V Z J S K L U A E Z F S I N D I C A M J D J D Z G
Find these keywords in the word search:
ACID
CONTRACT
EROSION
IGNEOUS
METAMORPHIC
RAIN
SEDIMENTARY
CARBONATE
CRYSTALLISE
EXPAND
LAVA
MINERALS
ROCK
TRANSPORTATION
CEMENTATION
DEPOSIT
FOSSILS
MAGMA
POROUS
SEDIMENT
WEATHERING
Write true or false for each sentence.
a Plant roots can break rocks into smaller pieces. ______________
b Heating and cooling cannot break rocks into sand. ____________
c Ice can break rocks into smaller pieces. _____________________
The table shows the results of Tom’s pH
testing of water from different places.
Only four of the samples were rainwater.
a Which type of water is most likely to
cause chemical weathering of
limestone? _____________
b Which type of water is closest to neutral? ______________
c i Which type of water is least likely to be rainwater? _____________
ii Explain why you chose this one. ____________________________
d Which naturally occurring substance probably caused the pH value
of samples B, C and D? _____________________________________
2
Rocks
a Which creature became extinct first? ___________________________
b
i Did animal E hunt animal A for food? __________________________
ii Give a reason for your answer. ________________________________
______________________________________________________________
______________________________________________________________
c
i Which two types of animals could have actually seen each other? _______
ii Just by looking at their fossils, suggest a reason why they did not actually
meet. ______________________________________________________
_____________________________________________________
d In a cliff containing layers of sedimentary rocks
i which fossil is most likely to be found in the lowest layer? ______________
ii which fossils are most likely to be found in the same layer? ____________
(Hint: there are two pairs to look for.)
e i Which two animals are likely to be part of the same predator and prey food
chain? __________________________________________________________
ii Give reasons for your choice. _______________________________________
________________________________________________________________
________________________________________________________________
________________________________________________________________
3
Rock Cycle
Use these keywords to complete this story:
metamorphic, crust, , lava, earthquake, igneous, sand, hot
sediment, squashed, weathering, sedimentary, pressure, volcano
Hi. My name is Bob the Rock. I started out as magma way down in the Earth’s
_______________One day, a ____________________ erupted, and out I flew. I
went from being magma to _________________. Before I knew what was happening, I started to cool off and soon turned into an _______________________
rock. Well, I was okay with that. I thought I looked pretty cool.
After a while, I started to notice that I was shrinking. I thought it was my imagination, but I was definitely eroding and ________________ into
_________________. The next thing I knew I was splashing around in some water, until finally I got stuck. A whole bunch of other ______________came rushing
at me, and I was being buried! I started getting ________________________
really hard. When it was all over, I noticed that I had changed into a lump of
_______________________ rock!
Well, fine. This was another cool new look. I wasn't going to complain, but before
I knew it (rocks don't keep time), I started shaking and bumping around. I think
you people would call that an ____________. I started getting super ________
and I thought I was going to melt—but I didn’t. My body was killing me from all the
___________ of being squeezed!
I think I fell asleep for a while, because when I finally thought to check if I was still
in one piece, I discovered that I had changed once again. I thought I looked better than ever. I couldn't believe it, but I had turned into a ___________________
rock! I don't quite know what to expect next, but I hope I stay this way for a long
time!
This diagram shows
the Rock Cycle.
What do the arrows
labelled A, B and C
represent?
Description
ARROW (A,B or C)
Heat and pressure, but NOT melting
_______________________
Melting, cooling and solidification
_______________________
Weathering, erosion, sedimentation
_______________________
Revision
Use the keywords in this booklet to find the mystery words. Put the letters into
the final word to unlock the secret phrase.
Secret phrase