compact
To press or squeeze together
rock layer
A thick sheet of rock made from the same material
cement
To stick together when forming rock
sedimentary
rock
Rock formed when sediment compacts and cements over time
sediment
Small pieces of rock like sand, silt, or mud
model
Something scientists create to explain or understand real-world
ideas
observation
Something you notice using your 5 senses
fossil
A preserved clue about life from the past found in rock
inference
A conclusion you figure out using observations + what you
already know
geologist
A scientist who studies rocks and the solid part of Earth
Examples of Observation:
(using your senses (see, hear, feel, smell, taste)
● The fossil was white.
● The skull had flat teeth.
● The
fossil was 6.5 feet long.
Examples of Inference:
a smart guess based on observations)
● The fossil came from a large dinosaur.
● The dinosaur probably
ate plants.
● The dinosaur walked on four legs.
Where Fossils Are Found?
mostly found in sedimentary rock.
How Sedimentary Rock Forms
1. _____________sinks in water. 2. More sediment ____________ up on
top. 3. Layers ________________ (get pressed together).
4. Layers
_______________ (stick together). 5. The rock gets _______ over time.
Sediment, piles, compact, cement, thicker
1. The organism ________. 2. The organism becomes covered by
________. 3. Sediment ___________ and turns into rock.
4. The
organism slowly becomes a ______. 5. More _________ forms layers on top.
dies, sediment, compacts, fossil, fossil