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33 Cards in this Set
- Front
- Back
What is the formula for finding the volume of a regular shape? |
V = lwh or Volume = length times width times height. |
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Find the volume of a box that is 12 cm long, 6 cm wide, and 4 cm high. |
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. |
Solid – vibrate or shake in place Liquid – can move around and slide passed each other
Gas – can move about very freely |
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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.
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A change of one substance into another. Examples: burning wood or iron rusting |
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MATTER AND ENERGY |
MATTER AND ENERGY |
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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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Define symbiosis. Describe the three different types of symbiosis.
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A close relationship between 2 different species that live close together
1. Mutualism – both species benefit 2. commensalism – one species benefits, the other is not affected 3. 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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Most scientists consider viruses to be non-living. Explain why. What do they have in common with bacteria?
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They do not respond to their environment, don’t grow, and don’t take in energy. They have DNA like bacteria do.
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What are bacteria? List the defining characteristics.
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Simplest form of life. Single celled, no nuclei
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Define cell.
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Smallest unit of life that is able to perform the basic functions of life.
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Compare and contrast plant cells and animal cells.
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Compare – both have nuclei, cell membraneContrast – plant cell has chloroplasts, animal cell does not. Plant cell has cell wall, animal cell does not. Plant cell is rectangular shape, animal cell is circular or irregular shaped
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Explain photosynthesis.
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Process in which producers use energy from the sun to make sugar.
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Explain cellular respiration.
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Process in which cells use oxygen to release stored energy.
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What 2 factors make up an ecosystem?
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Abiotic factors - non living
Biotic factors– living thing |
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What is a habitat?
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The physical location where plants and animals live.
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Explain the difference between deciduous and coniferous trees.
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Deciduous – broad leaves, drop leaves in winter time
Coniferous – needle like leaves, keep leaves in winter time |
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Give 2 examples of animal adaptations.
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Thick fur for cold climates
Skin/fur color for camouflage |
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Explain how living things cooperate and compete.
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Cooperate – working together to benefit all, ants bring food to the nest
Competition - a struggle for limited resources, hyenas and vultures fighting over remains of dead animal for food. |
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What is a producer?
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An organism that makes its own energy using sunlight.
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What is a consumer? Explain the 3 levels.
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An organism that gets energy from eating other living things
Primary – first link between producers and the rest of the consumersSecondary – eat primary consumers Tertiary - eat secondary consumers |
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Explain the role of decomposes
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An organism that breaks down dead organic matter
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What is an energy pyramid? Draw and example
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An energy pyramid shows the available energy in an ecosystem. The amount of energy decreases as you move up the pyramid
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An energy pyramid shows the available energy in an ecosystem. The amount of energy decreases as you move up the pyramid
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Compare – both show feeding relationships, both have producers and consumers
Contrast – food chain only show a single chain of consumers, and food web is many overlapping food chains. |
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What would happen if an organism were removed from its ecosystem?
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Other organisms that rely on it for food could die out
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