Vocabulary Atmosphere Air Pressure Air Mass Random! 10 10 10 10 10 20 20 20 20 20 30 30 30 30 30 40 40 40 40 40 50 50 50 50 50 Question 1 - 10 • What is an instrument used to measure changes in atmospheric pressure Answer 1-10 • barometer Question 1 - 20 • What is liquid/solid water falling from the sky? Answer 1 – 20 • precipitation Question 1 - 30 • What is the horizontal movement of air set into motion by pressure differences? Answer 1 – 30 • wind Question 1 - 40 • What is the change in phase from gas to liquid? Answer 1 – 40 • condensation Question 1 - 50 • Define a cold front Answer 1 – 50 • The boundary between a cold air mass and a warm air mass; cold air mass moves in behind the warmer air mass Question 2 - 10 • Define atmosphere. Answer 2 – 10 • Thin layer of gases that surround the Earth Question 2 - 20 • What holds the Earth’s atmosphere in place? Answer 2 – 20 • gravity Question 2 - 30 • What is the bottom layer, or the ‘weather’ layer, of the atmosphere called? Answer 2 – 30 • troposphere Question 2 - 40 • In relation to the North and South Poles and the Equator, how would the air move around the Earth? Answer 2 – 40 • The warm air from the equator would rise toward the poles and the cold air from the poles would sink towards the equator. Question 2 - 50 • How do differences in the temperature of the Earth’s atmosphere affect the movement of air? Answer 2 – 50 • The warmer air in the atmosphere rises and the cooler air in the atmosphere sinks. This causes convection currents in the atmosphere. Question 3 - 10 • Name one of the experiments we did that involved air pressure. Answer 3 – 10 • • • • • • • Fountain bottle Kissing balloons Ping-pong funnel Water glass trick Sewer slugs Magic Egg Soda balloon inflation Question 3 - 20 • Name the 2 pressure systems Answer 3 – 20 • High pressure system • Low pressure system Question 3 - 30 • Define a high pressure system. Answer 3 – 30 • When the atmospheric pressure in one area of the Earth is higher than the areas surrounding it Question 3 - 40 • Define low pressure system Answer 3 – 40 • When the atmospheric pressure in one area of the Earth is lower than the areas surrounding it Question 3 - 50 • Why do differences in pressure cause wind? Answer 3 – 50 • When there are pressure differences in the atmosphere, air moves from areas of high pressure to areas of low pressure. This movement of air causes wind. Question 4 - 10 • When air masses collide, what is formed? Answer 4 – 10 • A front Question 4 - 20 • Who is your favorite teacher? Answer 4 – 20 • I hope you said Ms. Osowski!! Question 4 - 30 • As the temperature of a gas increases, what will also increase? • *mass • *density • *volume Answer 4 – 30 • volume Question 4 - 40 • Define air mass Answer 4 – 40 • A large body of air that possesses certain temperature and humidity characteristics Question 4 - 50 • If a mass of warm air cools down, what will happen to its volume and density? Answer 4 – 50 • Volume will decrease • Density will increase Question 5 - 10 • When air temperature increases, what happens to the density? Answer 5 – 10 • Density decreases Question 5 - 20 • What holiday is on October 31? Answer 5 – 20 • Halloween!! Question 5 - 30 • What causes wind? Answer 5 – 30 • Differences between areas of high pressure and low pressure in the atmosphere Question 5 - 40 • When air heats up, its volume increases. What happens to its mass? • Increases • Decreases • Stays the same Answer 5 – 40 • Stays the same Question 5 - 50 • If air masses of 2 different temperatures meet and a front is formed, why does the colder mass of air sink below the warmer air mass? Why does the warmer air mass rise above the colder air mass? (explain in terms of density) Answer 5 – 50