science proficiency
Terms
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- When we see the sun in the daytime sky, we see the sun as it looked a few minutes ago. When we look at the stars in the night sky, we are seeing the star as it looked in the distant past. Why is this true? LOC 6
- The light from the sun reaches earth in about eight minutes. The light from a star takes many years traveling through space to reach the earth.
- How do glaciers cause erosion?
- Glaciers are the plows of the earth. Glaciers can shape the land over which they move carving out huge valleys. Glaciers can transport boulders weighing hundreds of pounds.
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What is inertia?
LOC 9 - Inertia is the tendency of an object at rest to stay at rest or an object in motion to stay in motion.
- What is an observation?
- fact
- What is the function of the nucleus?
- The nucleus is the "boss" or "director" of a cell. It controls a cell's activities and contains its genetic material.
- What is an inference?
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an opninion
an educated guess
a conclusion - A high pressure system usually brings what type of weather?
- Dry
- What is weathering?
- The breaking down of rocks into smaller pieces.
- How can an animal adapt to a climate change?
- An animal can migrate or hibernate.
- What are the two types of weathering?
- physical and chemial
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Would phytoplankton be a consumer or a producer?
LOC 13 - Producer
- Give some examples of physical weathering?
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1. When water seeps into a crack in a rock, it freezes(expands) and breaks the rock apart.
2. Plant roots can also force rocks apart. -
How is the speed of sound and the medium through which sound travels related?
LOC 11 - The denser the medium; the higher the speed of sound.
- Where do fossil fuels come from?
- Dead plants and animals
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Give an example of competition.
- When organisms compete for food or space.
- Give an example of chemical weathering.
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1. Acid rain.
2. When water reacts with an iron-containing mineral in a rock, the iron is changed into rust which can crumble a rock. -
Why is a polar bear's skin black? What is a solar collector painted black?
LOC 11 - Black absorbs more light as heat energy.
- Name some internal forces that can change the surface of the earth.
- volcanoes and earthquakes
- What makes up white light?
- different colors
- What is deposition?
- The depositing of sediments.
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Newton's first law is also know as what other law?
- Law of Inertia
- What is the final step in the erosion process?
- Deposition
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How are the colors in the rainbow different?
- Each color has a different wavelength and frequency.
- What does the Earth's rotation cause?
- Day and night
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In the water cycle, when water evaporates, is it a chemical or physical change?
- Phyical change.
- What is rotation?
- The spinning of earth around its axis.
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What is spontaneous generation?
LOC 17 - It a hypothesis stating that nonliving things can change into living things.
- What is revolution?
- The motion of Earth traveling around the sun.
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If a liquid is heated, what happens to both its energy content and the speed of its particles?
LOC12 - The energy increases; the speed increases.
- What causes the seasons to change?
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1. the tilt of Earth's axis
2. Earth's revolution around the sun - Name some fossil fuels.
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1. oil
2. natural gas
3. coal - What is the water cycle?
- It is the process that moves water moves back and forth between the lithospere and atmosphere.
- In summer, are the daylight hours longer or shorter?
- longer
- What are the four parts of the Water Cycle?
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1. Evaporation
2. Condensation
3. Precipitation
4. Collection(runoff) - A low pressure system usually causes what type of weather?
- Wet
- Does a sound wave travel faster or slower through a more dense medium?
- faster
- How can a plant adapt to a climate change?
- A plant can go dormant. In this condition, a plant stops growing and its metabolism is minimal.
- What unit would you use to measure an angle of reflection?
- degrees