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Q2 Science Exam
| Question | Answer |
|---|---|
| Reflection is - | the BOUNCING of light off of a surface |
| Refraction is - | the BENDING of light as it passes through a new medium |
| Objects that reflect - | aluminum foil, shiny metals, tinted windows, mirrors |
| Objects that refract - | water, lenses, microscopes, telescopes, prisms |
| How does light travel? | in straight lines |
| Magnetic Metals - | steel, iron, nickel, cobalt |
| Non-magnetic Metals- | aluminum, copper, zinc, gold, silver |
| Less Dense means- | floats in water |
| More Dense means - | sinks in water |
| Soluble means - | dissolves in water |
| Insoluble means - | will NOT dissolve in water |
| Things that are INSOLUBLE - | oil, metals, sand, rubber |
| Things that are SOLUBLE - | sugar, syrup, salt, cotton candy |
| Conductor examples - | aluminum, nickel, steel, iron, ALL METALS |
| Insulator examples - | plastic, rubber, cork, cotton, wood, styrofoam |
| Mechanical energy is - | energy from moving parts |
| Thermal energy is - | energy from heat |
| How is oil formed? | ancient ocean organisms + heat and pressure + millions of years |
| How is natural gas formed? | ancient ocean organisms + EXTREME heat and pressure + millions of years |
| How is coal formed? | Ancient PLANT organisms + heat and pressure + millions of years |
| Oil and natural gas deposits tell us what about an area? | it was once covered by oceans |
| Coal deposits tell us what about an area? | it was once covered by swamps |
| What do fossil fuels and sedimentary rocks have in common? | they both require heat, pressure and time to form |
| Non-Renewable Resources | Metals, Rubber, Petroleum, Minerals |
| Renewable Resources | wood, plants, sunlight, wind, animals |
| What is petroleum? | oil - a nonrenewable resource |
| Canyons are formed by - | moving water (river) erosion |
| Deltas are formed by - | water (river) deposition |
| U-shaped Valleys are formed by - | ice (glacier) erosion |
| Desert arches are formed by - | wind erosion |
| Sand Dunes are formed by - | Wind deposition |
| How can weathering and erosion affect mountain peaks? | can cause the peaks to become rounded over time |
| What is weathering? | breaking down of rock |
| What is deposition? | dropping of sediment |
| What is erosion? | movement of sediment |
| A variable is - | anything that can change or is changed |
| How many variables can you change in an experiment? | one |
| Sedimentary rock is - | made up of layers of sediments and fossilized organisms |
| What processes are needed for sedimentary rock formation? | Deposition, Compaction, Cementation |
| Compaction is - | the pressing together of layers of sediment |
| When looking at layers of rock, which layer is oldest? | the bottom layer |
| When looking at layers of rock, which layer is youngest? | the top layer OR the magma intrusion if present |
| A fish fossil tells us what about an area? | the area was once underwater |
| A leaf fossil tells us what about an area? | the area was once a forest |
| Soil that is MOST absorbent - | drains the LEAST amount of water |
| Soil that is LEAST absorbent - | drains the MOST amount of water |
| How should a battery be connected to a circuit? | with BOTH the positive and negative sides included |
| How should a light bulb be connected to a circuit? | with BOTH sides included in a closed path to the battery |
Created by:
nowlinclass
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