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38 Cards in this Set
- Front
- Back
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
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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.
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How do glaciers cause erosion?
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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.
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What is an observation?
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fact
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What is the function of the nucleus?
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The nucleus is the "boss" or "director" of a cell. It controls a cell's activities and contains its genetic material.
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What is an inference?
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an opninion
an educated guess a conclusion |
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A high pressure system usually brings what type of weather?
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Dry
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What is weathering?
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The breaking down of rocks into smaller pieces.
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How can an animal adapt to a climate change?
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An animal can migrate or hibernate.
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What are the two types of weathering?
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physical and chemial
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Would phytoplankton be a consumer or a producer?
LOC 13 |
Producer
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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. |
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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.
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Where do fossil fuels come from?
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Dead plants and animals
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Give an example of competition.
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When organisms compete for food or space.
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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. |
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Why is a polar bear's skin black? What is a solar collector painted black?
LOC 11 |
Black absorbs more light as heat energy.
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Name some internal forces that can change the surface of the earth.
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volcanoes and earthquakes
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What makes up white light?
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different colors
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What is deposition?
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The depositing of sediments.
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Newton's first law is also know as what other law?
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Law of Inertia
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What is the final step in the erosion process?
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Deposition
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How are the colors in the rainbow different?
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Each color has a different wavelength and frequency.
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What does the Earth's rotation cause?
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Day and night
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In the water cycle, when water evaporates, is it a chemical or physical change?
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Phyical change.
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What is rotation?
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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.
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What is revolution?
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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.
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What causes the seasons to change?
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1. the tilt of Earth's axis
2. Earth's revolution around the sun |
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Name some fossil fuels.
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1. oil
2. natural gas 3. coal |
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What is the water cycle?
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It is the process that moves water moves back and forth between the lithospere and atmosphere.
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In summer, are the daylight hours longer or shorter?
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longer
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What are the four parts of the Water Cycle?
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1. Evaporation
2. Condensation 3. Precipitation 4. Collection(runoff) |
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A low pressure system usually causes what type of weather?
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Wet
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Does a sound wave travel faster or slower through a more dense medium?
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faster
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How can a plant adapt to a climate change?
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A plant can go dormant. In this condition, a plant stops growing and its metabolism is minimal.
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What unit would you use to measure an angle of reflection?
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degrees
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