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Minerals & Rocks 5th
Science
| Question | Answer |
|---|---|
| I am a solid, natural material made from nonliving substances in the ground...what am I? | mineral |
| Which one is not a mineral: gold, iron ore, steel, silver | steel because it is made by man and not found in nature |
| I am the way a mineral reflects light from its surface...what am I? | luster |
| What is the softest mineral? | talc |
| What is the hardest mineral? | diamond |
| I am the measure of how well a mineral resists scratching...what am I? | hardness |
| When a mineral is broken with smooth surfaces this is called? | cleavage |
| When a mineral is broken with rough and uneven surfaces this is called? | fracture |
| I am a solid object made naturally in earth's crust and contains one or more minerals..what am I? | rock |
| I am a rock made by pieces of dust, sand, and soil pressed together over time ..if I am formed in water I may contain sea shells...what type of rock am I? | sedimentary rock |
| I am a rock that comes from the cooling of lava from a volcano..what type of rock am I? | igneous rock |
| I formed from Igneous and sedimentary rocks that are changed under heat and pressure without melting...what am I? | Metamorphic rock |
| When rocks change over type from one type to another this is called what? | rock cycle |
| I am made of nonliving and once living things...without me plants could not live on earth...what am I? | soil |
| I am part of the soil that is made of decayed organic materials...what am I? | humus |
| I am the addition of harmful material to soil, air, and water...what am I? | pollution |
| Name 3 ways to conserve soil? | fertilize crop rotation terracing |
| I am the remains or traces of ancient organisms preserved in the soil or rock...what am I? | fossils |
| Name 3 fossil fuels: | coal oil natural gas |
| What is coal used for? | electricity |
| What is oil used for? | gasoline |
| What is natural gas used for? | appliances (gas stoves) |
| When you compare rocks to decide how old each one is this is called what? | relative age |
| When determining the relative age of a rock which one is older-the one on top or on the bottom? | the bottom |
| When the age of a rock is given in years, what type of age is this? | absolute age |
| A time measured in millions of years is called? | era |
| Name some nonrenewable resources: | natural gas, coal, oil |
| Name some renewable resources: | wind, solar energy, water power |
| I am a resource that can be used up faster than you can make it...what am I? | nonrenewable |
| I am a living or nonliving resource that can be replaced naturally in a short amount of time...what am I? | renewable resource |
| Name some ways you can conserve energy? | -turn off the lights when leaving a room -turn off or lower the temp. of your hot water tank -do not leave the water running while brushing your teeth -carpool or use public transportation |
| The Earth is about 70% water how much is salt water and how much is fresh liquid water? | salt water - 97% liquid fresh water - 2.3% |
| I am an artificial lake built to store water...what am I? | reservoir |
| How can you conserve water? | -grow plants that do not require frequent watering and water after dark -Use water saving washing machines with full loads -fix leaking pipes -don't leave water running |
| I am produced when fossil fuels are burned...what am I? | smog |
| I am a form of oxygen that protects living things on earth's surface from the sun's dangerous radiation...what am I? | ozone |
| What 3 important gases does air contain? | oxygen, carbon dioxide, nitrogen |
| What 2 resources support life on Earth? | water and air |