1.1-1.2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| organism | living thing
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| another word for: living conditions | environment
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| environment | the surroundings of an organism or group of organisms
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| before God brought forth plant life he created light air water and ________ | soil
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| the physical factors that are needed for life: | light air water and soil
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| pedology (pe dol o je) | the study of soil
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| what is soil made from | material not derived from living organisms mixed with particles of organic material material derived from living organisms
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| mineral material | material not derived from living organisms
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| organic material | material derived from living organisms
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| decompose | break down
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| multiple-use materials | things that are biodegradable materials
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| recycling | using materials again and again
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| humus | left behind minerals and rich organic particles from creatures (such as worms insects and small mammals that make the soil their habitat) and plants that die bacteria fungi and other microscopic organisms
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| most of the organic matter of soil is found in the _________ | topsoil
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| topsoil | the top 2 to 6 inches of soil
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| weathering | rocks are broken down into soil
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| the type of w=rock and the method of weathering _______ or _________ determine the particle size and composition | physical and chemical
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| weathered particles wash down through the topsoil and settle into a lower layer called | subsoil
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| below the subsoil lies a layer of solid rock called | bedrock
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| soil profile | a vertical study of the sol is called a
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| exfoliation | this (pieces of rocks that continually crack pieces break away as large boulders or pebbles)shredding of rock pieces
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| quartz | the most common mineral in the earth's crust
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| chemical weathering does what | changes the composition of the original material
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| erosion | the natural process by which wind streams or ice (glaciers) carry away fragments caused by weathering
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| what kinds of life does soil contain | plants and animals
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| besides providing nutrients what other job does humus do in the soil | it holds a lot of water
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| name the top two layers of soil | topsoil and subsoil
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| what type of weathering is caused by the natural forces of wind water and temperature | physical weathering
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| chemical weathering involves what | the decomposition of rock as minerals react whit substances such as water oxygen and acids
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| why is the texture of the rocks found on a rocky seashore different from that of rocks gathered in your back yard | (this is all from physical weathering)because the rocks on the rocky seashore a beat against the waves so therefore they are sooth however the rocks in you back yard just lay there with not much movement therefore they are rocky
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| purpose of science(2 things) | 1.carefully observe nature
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| 2.to try to discover the laws of creation so these laws can be put to work for the benefit of mankind |
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| Sir Francis Bacon | one of the founders of modern science
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| How was Sir Francis Bacon important to the development of natural science? | he promoted learning and introduced the scientific method of studying nature
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| scientific method | a systematic way in which scientist gather and pursue scientific knowledge
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| the 3 main activities of any scientific method... | hypothesizing observing and perimenting
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| hypothesis | a sensible explanation to a problem
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| observation | involves gathering data about nature in a systematic way
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| data | facts
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| hypothesizing | speculating or thinking seriously about the objects and events of nature and formulating sensible explanations
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| experimentation | is the method of testing a hypotheses
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| six steps to the scientific method step 1 | state the problem
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| six steps to the scientific method step 2 | gather information
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| six steps to the scientific method step 3 | 3.formulate a hypothesis
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| six steps to the scientific method step 4 | 4.test the hypothesis
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| six steps to the scientific method step 5 | 5.record and analyze
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| six steps to the scientific method step 6 | 6.state the conclusion
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| experimental group | the group on which a test is performed
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| control group | the group used as a standard for comparison
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| constants | conditions present in both the control group and the experimental group throughout the experiments
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| variables | conditions present only in the experimental group
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| how many variables should their be when testing a hypothesis | one
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| every experiment involves comparing the results of at least one _______ _______ with those of a single ______ ______ | experimental group and control group
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| what does formulating a hypothesis mean? | suggesting an answer for the problem
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| what does this mean: record and analyze | record and analyze any changes made during the experiment record the results of the experiment
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| you need to record the _____ factors related to your experiment and describe the _____ in each experiment | constant and variable
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| what attitude did the great founders of modern science have about God? | they believed in God
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| who was the "Father of the Scientific Method"? | Sir Francis Bacon
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| how do you test a hypothesis | with an experiment
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| what step of the scientific method should be done throughout the experiment? | (step 5) record and analyze
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| if another person repeats you experiment how should his results compare to yours? | they should be close to my results or be exactly the same
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| the marigolds on one side of your house grow taller than those on the other side. give several possible explanations for this observation (1 of 3 three things) | they get more sun
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| the marigolds on one side of your house grow taller than those on the other side. give several possible explanations for this observation (2 of 3 three things) | they are watered more
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| the marigolds on one side of your house grow taller than those on the other side. give several possible explanations for this observation (3 of 3 three things) | they are not eaten as much by bugs
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