Week 11 Shirley's Blog
Lab:
Sweater Article:
trying to ask them to learn from their own
Children in charge
finding out by themselves, not from the teacher
pre-conception
main takeaway:
making sure they are learning and discovering
safe learning: see how you can grow, let them corporate with each other.
Law of superposition:
The old one is sillstore, then is sandstoreSand:
We try the hair first:
1. Beach(ocean) 2. Dune 3. Beach(ocean) 4. Beach(ocean) 5. River
Then we see the last 6 kinds of the sand examples to see which types of those from.
6. dune 7. River 8. River Beach 9. Beach. 10. Beach. 11. woolites
This is our guess. first:
lecture:
Buoyancy/What is water displacement?Density
Gold=20
Quarts=2.7
Human=1.01
Anything lower than 1: floats
Put the reguler MD in the water, it is sink
Then put AW root beer in the water, it is sink
Then put Dr.peper in the water, it is sink
Then is diet coke which have less sugar, it is float
Then is zero sprite which is float
Then beer is float
pepsi is float
Reading the book:
put things in the water then you will know how much the water rises.
We measured 2 rocks
Rock 1:
Weight(air): 143g
Weight (water): 59g
143/84=1.7
Rock 2:
Weight (air)=132.9g
Weight (water)=58.7
132.9/74.3=1.79
The we use the jell, to cut the rock in half way, from small rocks to big rock
Pressbook:
岩石类型
岩石分为三种类型:火成岩、沉积岩和变质岩。
| 火成岩 | 沉积 | 变质 |
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| 侵入火成岩 | 喷出火成岩 |
| 岩浆在地下冷却时,冷却速度会更慢。由于岩浆位于地球内部,因此受到良好的保护,并形成更大的晶体。这被称为侵入岩。 | 当岩浆在水中或地球表面冷却时,例如火山喷发后,它会冷却得更快并形成更小的晶体。这被称为喷出岩。 |
岩石循环
岩石循环中的关键过程是热和压力以及风化和侵蚀。每种类型的岩石都会经历不同的变化,从而影响其形态和岩石类型。
火成岩:
- 可以经受高温和高压而变成变质岩
- 可以经历风化和侵蚀成为沉积岩
- 可以融化并再次变成岩浆。然后,它会冷却并重新形成火成岩。
沉积岩:
- 可以经受高温和高压而变成变质岩
- 可以经历风化和侵蚀,从而分裂成沉积物。然后,这些沉积物可以再次压实成沉积岩。
- 可以熔化并变成岩浆或火成岩
变质岩:
- 可以经受热量和压力,转变为另一种变质岩
- 可以经历风化和侵蚀成为沉积岩
- 可熔化成为岩浆和火成岩
形成于岩石中形成空洞时,空洞形成的方式多种多样。空洞形成的一种方式是,流动的熔岩中形成二氧化碳和水蒸气气泡。
阿基米德原理
阿基米德原理认为,排开液体的重量等于物体的重量。
Specific gravity
- Formula for specific gravity: W(air) / (W(air)-W(water))
- Weight of displaced liquid = weight of the object
- The specific gravity for a geode is 2.7.
- If the formula equals 2.7, it is likely the geode is solid quartz.
- If the formula equals less than 2.7, the geode will be more hollow and have more crystals inside.
风化、侵蚀和沉积
风化是地球表面岩石的分解。风化有两种类型:
- 机械:也称为物理风化,岩石由于水、风或温度和压力变化等其他条件而分解成较小的碎片
- 化学:化学反应改变岩石的分子结构
岩石风化分解后,就会发生侵蚀。
Weathering is the making the mess and Erosion is cleaning it up.
Sand
沙子是任何比淤泥大、比砾石小的岩石物质。沙子是在岩石风化或分解时形成的,风化或分解有两种方式:水或风









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