Science- Unit Test!!

Question 1

Formed From Heat And Pressure

Answer 1

Metamorphic Rock

Question 2

Formed when molten minerals cool down.

Answer 2

Igneous Rocks

Question 3

Some Igneous Rocks have coarse texture because

Answer 3

It is cooled slowly

Question 4

Formed when eroded materials are deposited and hardened

Answer 4

Sedimentary Rocks

Question 5

EXPLAIN HOW TO SAFELY CONDUCT THE ACID TEST:

Answer 5

1. Put Safety Goggles On
2. Place Rock Or Mineral sample in small cup
3. Place 1 Drop Of acid on the sample
4. Look For Bubbling / listen for fizzing
5. Dry sample with paper towel/ tissues

Question 6

Explain how to test a rock or mineral for iron:

Answer 6

1. Touch rock or mineral sample with a magnet

2. If the rock or mineral has iron in it, the magnet will stick to the sample.

Question 7

Explain The Difference between a rock and mineral:

Answer 7

1. Rock- hard part of earth’s crust made of minerals

2. mineral- Chemically The Same Where ever it is found- made of chemicals, never alive

Question 8

What Is a rock?

Answer 8

A rock is a hard, solid part of the earth’s surface. Most Rocks are made of combinations of minerals.

Question 9

What Is A Mineral?

Answer 9

Minerals are the basic building blocks of all rocks. A mineral is made up of one or more chemicals and is chemically the same all over the earth. Each Mineral has definite physical and chemical properties. The materials in minerals were never alive
The Scientific names of minerals sometimes. But not always, end in the suffix “ite.” Some exceptions are quartz and feldspar, which are minerals but don’t end in the suffix “ite.” Anthracite is another exception. Anthracite is not a mineral because it is made up of materials that were once alive, mainly plants. Early geologists may have thought Anthracite was a mineral, but discovered later that it wasn’t

Question 10

Appearance:

Answer 10

Perhaps the easiest property to observe is the color of a rock or mineral. Color Inclusion whether it is light or dark and whether it has spots or streaks.
Geologists also record if a rock or mineral sample is shiny. They use the term of luster for this property. Metallic, glassy, and dull are examples of different kinds of luster.
Another easy property to observe is whether a specimen is transparent, translucent or opaque. If a rock is transparent, you should be able to look through it and see details of an object behind it - like through window glass. If it is translucent, light will go through it but you wouldn’t be able to see through it clearly - like frosted glass. Opaque means it blocks light completely, casting a dark shadow.

Question 11

Texture:

Answer 11

We often use the word texture to mean how something feels. Geologists use the word differently. To a geologist, texture refers