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26 Cards in this Set
- Front
- Back
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What is the formula for finding the volume of a regular shape? Find the volume of a box that is 12 cm long, 6 cm wide, and 4 cm high. |
V = lwh or Volume = length times width times height. 288 cm3 |
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Name the three most common states of matter. Give an example of each. |
Solid – table, Liquid – water, Gas - oxygen
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Describe the movement of molecules in each state of matter. |
Describe the movement of molecules in each state of matter. |
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What is an atom? |
The smallest, or most basic, unit of matter |
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What is an element? |
Contains only one type of atom |
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What is a compound? Give at least one example. |
consists of two or more types of atoms bonded together. Example – salt |
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What is a mixture? Give at least one example. |
a combination of different things that stay the same individual thing when mixed and can be separated physically. Example: fruit salad |
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Name 3 ways to separate a mixture |
Magnets, evaporation, filtering |
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Illustrate the particle arrangement for each state of matter. |
gas liquid solid |
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What are physical changes? Give two examples. |
A change in any physical property of a substance, not the substance itself. Examples: shaping a piece of clay, or painting a house |
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What are chemical changes? Give two examples. |
A change of one substance into another. Examples: burning wood or iron rusting |
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1. List and describe the four basic characteristics of living things.
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1. organization – have cells that allow them to get energy and to move.
2. growth – consume food to get larger 3. reproduction – form other organisms like themselves, DNA is copied and passed on to offspring 4. response to their environment – react to light, temperature and touch |
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2. Define symbiosis. Describe the three different types of symbiosis.
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A close relationship between 2 different species that live close together1. Mutualism – both species benefit2. commensalism – one species benefits, the other is not affected3. parasitism – one species benefits, the other species is harmed.
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How are organisms classified?
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kingdoms
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What is a pollutant?
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Substances that are harmful to the environment.
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Explain the difference between erosion and weathering.
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Erosion - The washing away of soil, Weathering – Natural forces breakdown rocks
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What is meant by the term “urban growth”? How does it affect ecosystems?
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Population grows and there is an increased demand for resources. Can cause increase in erosion, loss of farmland, and poor air quality
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What are the main components of soil?
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Rock particles, organic matter, air, water
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What percent of all water on Earth is freshwater?
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About 3%
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How are sedimentary rocks formed?
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when loose rock particles are pressed together.
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What is a fossil? What type of rock are they found in? What can they tell us about the past?
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Remains of dead plants and animals from long ago. Found in sedimentary rock. Can give clues to how the Earth once looked.
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Give an example of a natural disaster and tell how it impacts Earth.
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Volcano – burns plant life
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What is the scientific method?
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An organized way of conducting an experiment. Steps: 1. Question/Purpose 2. Hypothesis 3. Collect Data 4. Conclusion
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What is the purpose of a microscope?
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To see microorganism close up
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What is an appropriate tool and unit of measurement for the following?
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a. Height of a textbook ruler/meter stick, centimetersb. Mass of a bottle of glue beam balance, grams
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What is a hypothesis?
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Prediction/educated guess
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