1. Daily Warm-Up Exercises
Day 15
Describe the processes that cause rocks to change from one form to another.
Any type of rock can melt and then cool to form an igneous rock. Any type of rock can weather, erode, move, and settle to form sediments, which can get compacted and cemented together to form a sedimentary rock. Any type of rock can be changed by heat and/or pressure to form a metamorphic rock.
What does compacted mean?
to get squeezed or pressed together so it takes up less space
What does cemented mean?
to get stuck together
What causes the pressure on a rock beneath Earth's surface?
the weight of all the rock above it
Daily Warm-Up Exercises
Daily Warm-Up Exercises

2. Daily Warm-Up Exercises
Day 16
Describe the 3 types of sand: mountain stream, beach, and dune.
Mountain stream = subangular & poorly sorted because not carried far. Composed of quartz, feldspar, & mica.
Beach = rounded & well sorted because carried far. Composed mostly of quartz.
Dune = subrounded & well sorted because carried far. Composed of quartz.
What does compacted mean?
to get squeezed or pressed together so it takes up less space
What does cemented mean?
to get stuck together
What causes the pressure on a rock beneath Earth's surface?
the weight of all the rock above it
Daily Warm-Up Exercises
Daily Warm-Up Exercises

3. Sand Types (Part 2)
Investigation 4
My Sediments Exactly

4. New Sands Sand samples from different locations Beach Mountain Stream
Sand Dune

5. Sand Investigations Use a hand lens to examine the sand samples.
Record your observations on the Sand Observations worksheet.

6. Resource Book V2, Page 132
Type of Activity: Student Activity Objective: The purpose of this activity is to provide an opportunity for students to practice using scale legends in order to develop this skill.   Procedure: Direct the students to look at the Sand 1 image on p. 35 of the CaSE resources book (image is available on the next slide). Ask the students to determine the amount of magnification in the sand 1 image using the same approach that was just discussed with the Green Sand Beech image. (The students can either complete this activity individually or in small groups) Once they have had the opportunity to do the calculation, the teacher should guide the students in sharing their answers as well as the process they used to determine the answer. [in the book,the sand is actually magnified 7 times-the line that shows 1 cm in the image is 7 cm long. Again, if you are projecting the image, you can repeat the procedure with the enlarged picture] >>>end of exercise<<< 6

7. Sand Analysis Sand analysis criteria:
Location
Shape
Sorting
Grain size
Composition / color
Wentworth Scale: Used to classify grain size
* Use pages 22, of the EH Resource Book V1, or in V2.

8. Sand 1 Sand 1 is from a mountain stream:
Grains were not carried far from the source rock
Wide variety of sizes
Not well rounded or sorted
Sharp edges

9. Sand 2 Sand 2 is from a beach:
Grains were moved a great distance from their source by water
Tumbled by waves
Uniform in size
Composed of mostly quartz particles
Well rounded

10. Sand 3 Sand 3 is from a sand dune
Grains were buffeted by wind in a dry environment
Have some flat sides
Well-sorted
Frosted appearance

11. Mystery Sand How can we identify the source?
Record your observations and identifications on your worksheet.