Podcast
Questions and Answers
What type of rock is formed when melted rock from inside the Earth cools and hardens?
What type of rock is formed when melted rock from inside the Earth cools and hardens?
- Volcanic rock
- Metamorphic rock
- Sedimentary rock
- Igneous rock (correct)
Which mineral is described as the 'softest mineral' and used to make talcum powder?
Which mineral is described as the 'softest mineral' and used to make talcum powder?
- Quartz
- Talc (correct)
- Feldspar
- Zincite
Which of the following is NOT a common mineral found in the Earth's crust?
Which of the following is NOT a common mineral found in the Earth's crust?
- Titanium (correct)
- Pyroxenes
- Feldspars
- Olivine
What is the main component used to make aluminum?
What is the main component used to make aluminum?
Which type of rock is formed when other rocks are changed by heat and pressure?
Which type of rock is formed when other rocks are changed by heat and pressure?
What determines whether a rock is classified as igneous, sedimentary, or metamorphic?
What determines whether a rock is classified as igneous, sedimentary, or metamorphic?
Which type of rock is formed from layers of sediment deposited and hardened over time?
Which type of rock is formed from layers of sediment deposited and hardened over time?
What causes existing rocks to transform into metamorphic rocks?
What causes existing rocks to transform into metamorphic rocks?
Which best describes the texture of an igneous rock that cooled rapidly?
Which best describes the texture of an igneous rock that cooled rapidly?
What gradual processes can break down and erode rocks over time?
What gradual processes can break down and erode rocks over time?
How do scientists use fossils to understand the past environment?
How do scientists use fossils to understand the past environment?
Which type of rock is formed by the cooling and solidification of magma or lava?
Which type of rock is formed by the cooling and solidification of magma or lava?
Why are most fossils formed from living things that had hard parts such as bones, shells, and wood?
Why are most fossils formed from living things that had hard parts such as bones, shells, and wood?
What type of rocks can be classified according to their color, hardness, and texture?
What type of rocks can be classified according to their color, hardness, and texture?
Why do scientists study fossils found near the South Pole?
Why do scientists study fossils found near the South Pole?
