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