Rocks
How are igneous rocks formed?
What is when melted rock becomes solid.
Dylan wants to group minerals based on their luster. What types of categories could he use?
Hard and Soft
Black and White
Fracture and Cleavage
Metallic and Nonmetallic
What is metallic and nonmetallic.
What is weathering?
What is the breaking down of rock by wind, water, ice, temperature change, and plants
What is Erosion?
What is the movement of rock by gravity, wind, water, and ice (glaciers).
Leilani lives in Hawaii. Most of the rocks she finds for her science experiment are igneous. Why do you think this is true?
What is there are many volcanoes in Hawaii.
Dennis cannot scratch a mineral with his fingernail, but can scratch it with a piece of glass. Which property of the mineral is he testing?
What is hardness.
What is a change that is only caused by weathering?
What are tree roots or ice breaking a rock
What change happens ONLY because of erosion and NOT because of weathering?
What is rocks moved from one place to another
What type of rock can be found as “layers” of another, or be broken down in parts of fossils?
What is Sedimentary Rocks
What does the streak of a mineral describe?
What is the color of the powder left behind on the streak plate
What could cause large rocks to split and break, greatly changing the landscape of a region?
What is water freezing inside the cracks of rocks
Can water cause weathering, erosion, or both?
What is both weathering and erosion because moving water wears down rock (weathering) and then moves it away (erosion)
Rocks are broken down into tiny particles by wind and water over a long period of time. Where do most of the tiny particles of rock end up after they have been broken down and blown away?
What is they become parts of sedimentary rocks
How are rocks and minerals different?
What is minerals are organic, and rocks are made of minerals.
What changes to Earth's surface can break down the surface and also move the broken pieces away?
What is wind and water
Can wind cause weathering, erosion, or both?
What is both weathering and erosion because wind can blow sand against rock, wearing it down (weathering) and then blow the pieces away (erosion)
How can igneous rock be changed into metamorphic rock?
What is put the igneous rock under extreme heat and pressure, then it changes into metamorphic rock
Brenda noticed that Mica minerals break along smooth lines. What property of minerals is she observing?
What is cleavage
Noah created a model of a glacier to help explain how glaciers change the surface of Earth. He froze two large blocks of ice. One block was pure water. The other was water mixed with sand and rocks. He took both blocks and rubbed them across a sheet of tinfoil. The block of pure water slid smoothly over the tinfoil. The block with sand and rocks ripped the tinfoil in many places. How does Noah’s model explain how glaciers change Earth’s surface?
What is the rocks and sand contained in most glaciers create grooves (weathering) in Earth’s surface
Which kind of river is most likely to cause the most erosion?
What is a long river with fast water.