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Test 1 Review. Lab Safety, Scientific Inquiry, and Properties of the Atmosphere. What does this symbol represent?. Poison safety. What does this symbol represent?. Thermal Safety. What does this symbol represent?. Disposal Alert. What does this symbol represent?. Chemical Safety.
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Test 1 Review Lab Safety, Scientific Inquiry, and Properties of the Atmosphere
What does this symbol represent? • Poison safety
What does this symbol represent? • Thermal Safety
What does this symbol represent? • Disposal Alert
What does this symbol represent? • Chemical Safety
What do scientists call a “A statement that describes what always seems to happen in a given situation”? • A scientific law
What is a theory? • A well-tested explanation.
In the Penny Lab, which would be an appropriate Hypothesis? • A) If the water is soapy, the penny will become slippery. • B) If the water is soapy, more water will stay on the penny. • C) If the water is not soapy, the penny will not get clean. • B
In an experiment, what is the manipulated variable? • A) What the scientist is measuring. • B) What the scientist is testing or changing. • C) The item that responds. • B
After you have analyzed your data, what should you do? • Draw a conclusion
Fill in the blanks • Oxygen is important because most animals 1) ___________ it, 2) ___________ consumes it, and it is in 3) ______________, which protects us from harmful radiation. • 1) breathe • 2) fire • 3) ozone
What three things make up most of our dry air? • Nitrogen, oxygen, and other gases
What is the scientific word for evaporation from plants? • Transpiration
What is this process describing? • As humid air gets colder, the water vapor turns back into liquid water. When the water contacts a solid surface (such as glass or a particle of dust), it becomes a droplet. • Condensation
Fill in the blank • Warm air is _________ dense than cold air. • Less
LAST QUESTION! Make your bids: Bid all, none, or a specific number of points. If you get it right, you gain the points. If you get it wrong, YOU LOSE THE POINTS.
As altitude increases, what three things decrease? • Density • Pressure • Temperature