Science with Ms. Davis

"Procedures"

Sponge:
What did you learn about in science in fifth grade?

Students will:
1) Practice and explain procedures for interruptions, entering the classroom, and more
2) Explain what it means to "Take a Break" and practice as allowed by time

Special note: Mr. Roberts, the principal, came and visited during two classes.  He spoke to the students about the importance of being productive, responsible, inspired, service-learning oriented members of society (PRISM).

"Rock Cycle: Review and Diagram"

Sponge (p. 134):
1) Is it intrusive or extrusive igneous rocks that form inside the Earth?
2) How are igneous rocks made?

- Complete/review "Igneous Rock Questions" (p. 131)
- Complete rock type chart as needed (p. 132), see notes in previous post
- Watch rock cycle video clip from NASA's youtube account
- Diagram the rock cycle

Exit Slip (p. 134):
What are some questions you have about rocks?

"Rock Cycle"

Sponge:
1) What is the difference between the two types of igneous rocks?
2) What rock is created through heat and pressure?

- Review/complete crystal size investigation (p. 129)
- Complete "Igneous Rock Questions" (p. 131)
- Draw rock type chart on p. 132 with notes about each type of rock
a) Sedimentary rocks
Made from eroded sediments cemented into rock
Made in oceans, swamps, deserts - depends on the kind of sedimentary rock
b) Igneous Rocks
Made from cooled and hardened lava/magma
Intrusive igneous: made inside the Earth
Extrusive igneous: made on Earth's surface
c) Metamorphic Rocks
Made from other rocks because of heat and pressure
Made under Earth's surface: it's hot there & there's pressure from moving plates

Exit Slip (p. 130):
- One thing I learned:
- One question I have:

"Rock Cycle: Crystal Size Investigation"

Sponge:
1) How do igneous rocks form?
2) How do metamorphic rocks form?

Review yesterday's observations
- Metamorphic rocks used to be other rocks
- Igneous rocks can be extrusive (form on Earth's surface) or instrusive (form inside the Earth)

Demonstrate how crystals form with salol: melt in hot water, form crystals in cold water
- Record observations in a chart on p. 128

Complete crystal size investigation (p. 129)
- Question: Why do some igneous rocks have larger crystals than others?
- 1) Variables: what do you think affects how big crystals get?  Why?
- 2) Materials: 2 bottles salol, hot water, cold water, room temperature water, goggles
- 3) Procedure:
a) Get materials
b) Put salol bottles in hot water to melt
c) Put one bottle in cold water and one in room temperature water
d) Record observations
e) Compare crystal size
- 4) Record your results
- 5) Discuss conclusions:
* Crystals in room temperature water were larger
* The longer the cooling time, the larger the crystals
* Since intrusive igneous rocks have larger crystals, they must cool more slowly
* It must be hotter inside the Earth
* Hot inside Earth --> Magma cools slowly --> Big crystals form --> instrusive rock
* Cool air on surface --> Lava cools quickly --> Small/no crystals form --> extrusive rock

Exit Slip (p. 130):
Extrusive and intrusive rocks have different crystal sizes because...

"Rock Cycle: Igneous and Metamorphic Rock Observations"

Sponge (p. 114):
1) The correct order of Earth's layers from inside to outside is...
2) ______________ fossils help geologists determine how old a rock is.

Rock cycle notes (p. 124): in a t-chart
- Igneous Rocks:
Form when lava/magma cools and hardens
2 types: extrusive, intrusive
- Metamorphic Rocks:
Form from heat and pressure inside the Earth

Igneous Rock Observations (p. 125)
Metamorphic Rock Observations (p. 127)

Exit Slip:
- One thing I learned about igneous rocks is...
- One thing I learned about metamorphic rocks is...

"Fossils and Time"

Sponge:
1)
2)

Review index fossils
Complete correlation questions - index fossils in action (p. 113)
Notes: Thinking about Index Fossils (p. 115, 117)

Exit Slip:

"Fossils and Time"

Sponge:
1)
2)

Review yesterday's assignment:
What is an index fossil?
How do geologists/paleontologists use them to compare rocks?

Finish/check fossil correlations
Fossil Correlation Questions

Exit Slip:

Will the new posts feed into the blogger post with the feedburner html?

"Fossils and Geological Time"

Sponge:
1) One thing the geological time scale does is...
2) Why are "Homo sapiens," i.e. us, the only hominids left?

Discussion:
- What did we learn from Walking with Cavemen?

Quick-write:
What do fossils tell us?

Intro to index fossils

Identify index fossils

Exit Slip