Rock Types
Which rock forms when magma or lava cools?
Igneous Rock
What is melted rock below Earth's surface called
Magma
What is weathering?
The process of breaking rocks into smaller pieces
What is erosion?
Movement of sediment from one place to another
What spooky animal can turn its head about 270 degrees?
an owl
Which Rock forms from layers of sediment?
What two processes turn magma into igneous rock?
cooling and solidification
True or False: plant roots can break rocks apart
true
Name two agents of erosion?
Water, wind, ice, or gravity
What halloween creature is a mammal that can truly fly?
A bat
Which rock changes because of heat and pressure
metamorphic rock
What can turn sedimentary rock into metamorphic rock?
Heat and pressure
Is rusting of iron-rich rock physical chemical weathering?
Chemical weathering
What happens during deposition?
Sediment is dropped or settles in a new place
True or False: Your skeleton has more bones when you're a baby than when you're an adult?
True! babies have about 270 bones, and adults usually have 206
Which type of rock forms when lava cools on Earth's surface?
Igneous Rock
What happens to rock when it melts?
It turns into magma
What enters a crack in a rock, freezes, and breaks the rock apart. What type of weathering is this?
Physical weathering (ice wedging)
What landform can form when a river drops sediment at its mouth?
A river delta
What happens to a pumpkin when it is left outside for weeks and begins to rot?
Decomposition! Fungi and bacteria break it down
Why are fossils usually found in sedimentary rocks?
Layers of sediment can bury and preserve remains
Can igneous rock become a sedimentary rock? Explain how
Yes! Through weathering, erosion, deposition, compaction, and cementation
What is the difference between physical and chemical weathering?
Physical weathering breaks rocks into smaller pieces. Chemical weathering changes the minerals in rocks.
Explain how weathering, erosion, and deposition work together to change Earth's surface?
Weathering breaks rocks apart, erosion moves the pieces, and deposition drops them in a new location
What creepy body part continues working even while you sleep and can beat over 100,000 times a day?
Your heart