7.4 How life developed
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Lesduur is: 45 minOnderdelen in deze les
Slide 1 - Tekstslide
Slide 2 - Tekstslide
Slide 3 - Tekstslide
what is the best definition of fossil?
A
fossils are preserved remains of once living organisms.
B
fossils are petrified remains, or traces, of organisms or part of organisms from the past.
C
fossils are any preserved remains, impression, or trace of any once-living thing from a past geological age
D
fossils are the preserved remains or traces of organisms (plants, animals, etc) that lived in the distant past
Slide 4 - Quizvraag
How old is a fossil at least?
A
>1.000 years
B
> 10.000 years
C
> 100.000 years
Slide 5 - Quizvraag
What is the importance of fossils?
A
they give clues of organisms that lived long ago
B
they provide evidence about how Earth's surface has changed over time
C
they help scientists understand what past environments may have looked like.
Slide 6 - Quizvraag
there are two main groups of fossils:
body & trace
what is NOT a body fossil?
body & trace
what is NOT a body fossil?
A
bones
B
coprolite
C
egg
D
shell
Slide 7 - Quizvraag
there are two main groups of fossils:
body & trace
what is NOT a trace fossil?
body & trace
what is NOT a trace fossil?
A
burrow
B
carbon film
C
footprint
D
track
Slide 8 - Quizvraag
carbon film
preserved remain
cast
mold
trace fossil
petrified fossil
Slide 9 - Sleepvraag
what is a fossil?
A
oil formed from sea animals of long ago
B
sandstone showing ripple marks from water
C
arrowhead made thousands of years ago
D
animal tracks in rocks
Slide 10 - Quizvraag
characteristics of index fossils
A
Small geographical distribution, short range through time
B
Small geographical distribution, long range through time
C
Wide geographical distribution, short range through time
D
Wide geographical distribution, long range through time
