Monthly Archives: January 2012

Staged Races–Science 7

Be sure you have notes on what the various staged races looked like. We are in the process of learning to make distance vs. time graphs showing the motion. You should have a graph completed showing the steady walk, jog, … Continue reading

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Science 7 Beginning a study of motion January 23-24

1. List as many words as you can that relate to motion. Do not look any up, just rely on what you remember at the time of making the list. Be inclusive and expansive. Classify your words–do you have mostly … Continue reading

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Discussion Science 8–models of matter

Today we discussed what an 8th grader ought to know about the atomic theory of matter. We used the following references. Become familiar with their content. Chemistry: How It All Started Fundamental questions about matter Some evidence for the existence … Continue reading

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Science 8 more models of reactions

models of other reactions

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Science 7 Testing the balloon explanations and assessing your understanding

On Tues 17 Jan/Wed 18 Jan, we will perform the following tests during each period. You should record your questions and expectations before actually performing the tests. You should prepare a printed copy of your lab report UP THROUGH the … Continue reading

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Science 8–vinegar and carbonate reactions

Research the reactions between acetic acid (vinegar is a diluted solution of acetic acid and water) and 1. calcium carbonate (chalk) and 2. sodium carbonate (washing soda). While one molecule of baking soda reacts with one molecule of acetic acid, … Continue reading

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Science 8–human thinking and scientific evidence

1. Listen again to the radio episode linked below. 2. Examine and investigate the information presented at the two links below “Global Climate Change” and “Understanding Climate Change.” 3. Respond on your blog (in a post entitled–Thinking about climate change), … Continue reading

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Science 7–thoughts on hypotheses, predictions, and experiments

Hypothesis—An explanation that might be true Prediction—An observable consequence of the hypothesis being true Experiment (a test)—An event carefully arranged to produce or demonstrate the expected consequence if the hypothesis were true A true prediction supports the hypothesis (BUT a … Continue reading

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Ball and stick models of molecules–Science 8

See this segment about a middle schooler and models of molecules. http://fox4kc.com/2012/01/11/little-girl-has-big-breakthrough-in-tiny-world/

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Science 7 Suspected explanations (hypotheses) about the flight of the hot air balloon

Results from each period in finding categories of explanation. The next task will be to develop tests that aim to gather supporting evidence for a hypothesis and challenging evidence for the other competing hypotheses. Hypotheses / explanations for the flight … Continue reading

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