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In the winter, the air pressure has been decreasing over several days. Which weather will most likely occur?
Snow
The local weather forecaster says a low-pressure system will enter North Carolina. Which type of weather will the low-pressure system most likely bring?
Rain/Storms
Which factor determines whether precipitation will be in the form of rain or snow?
Temperature
Compare low- and high-pressure weather systems
Low Pressure-Lousy/Rain High Pressure-Happy/Sunny
Aliyah observes the air pressure daily. Over the last couple of days the air pressure has been increasing. What weather will Aliyah most likely observe as a result?
Clear, Cool, Sunny
How is it possible for single-celled organisms to survive?
Everything in one cell
How is a plant different from bacteria?
Multicell-plants Unicellular-bacteria
Kim lost her hammer outside. When she found it a few months later, some parts of the metal were covered with flaky, brown rust. Which type of change occurred when rust formed on the hammer?
Chemical
Explain why burning wood is a chemical change
New subsatnce
Explain why melting ice is a physical change instead of a chemical change
Same substance, different state
Which type of change occurs when the size, shape, appearance, or volume of a substance is changed without changing its composition?
Physical
Bob puts 200 grams of ice into a pitcher with 900 grams of water. He gets distracted and comes back later to find that the ice has melted in the water. How many grams of water does Bob now have in the pitcher?
1100 grams
Ivy mixed 30 g of hot chocolate mix with 200 g of hot milk. She then added 5 marshmallows with a mass of 8 g each. Which best describes the mass of her hot chocolate?
270 g
While riding his bike, Dawson starts to notice his face and shoulders beginning to burn. How is this most likely occurring?
Radiation
What happens to metal railroad tracks during the heat of a summer day?
Expand, increase in length
John put a heat pack on his cold feet. What will most likely be the result?
Heat from pack to cold feet
