Gases in the Air Word Search
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1 Gases in the Air Word Search D O L X R T I F B S I N D W H J I K M Y Z E L I S N E D Z E M E L T I N G R U F D G D D L I S V O C Y Y B V T I O I X I K R X N S O L U S B C R C N U M Y D S E I N A O Z A T A N M G E M B M G G D S V T I Y V G V C D I H H O L E B O N T G D Z G N I Z E E R F N R E N K L N G G L D P F P D L S I X I Q P W R V A R B X T Y L I Q Q G N E G Y X O Y L Z I H U N P N C A R B O N D I O X I D E G I L Z I L O J G B C D M L E W X P P B M V H H Y A E D O U U G Find the words below in the grid above acid boiling carbondioxide condensing dryice gas helium hydrogen indicator liquid melting nitrogen oxygen solid subliming freezing Words may be found horizontally, vertically, diagonally or backwards
2 Gases in the Air Quiz 1 1. Which gas in the air is needed for living things to stay alive? 2. What gas makes up most of the air? 3. Which gas explodes with a loud bang? 4. Name both low density gases that can make balloons float in the air? 5. Which gas can be cooled down to make dry ice? 6. Which gas was shown to make water acidic? 7. Which low density gas does not burn? 8. What do you call the change when a liquid becomes a gas? 9. What do you call the change when a gas becomes a liquid? 10. What do you call the change when a solid becomes a liquid? 11. What two chemicals are made when a fuel burns? 12. What is the name used when solid carbon dioxide changes straight to a gas? Use the space below to describe any experiment you saw in the science assembly.
3 Gases in the Air Quiz 2 NITROGEN, OXYGEN, CARBON DIOXIDE, ARGON, HYDROGEN, HELIUM, WATER 1. Which gas in the air is needed for living things to stay alive? 2. What gas makes up most of the air? 3. Which gas explodes with a loud bang? 4. Name both low density gases that can make balloons float in the air? 5. Which gas can be cooled down to make dry ice? 6. Which gas was shown to make water acidic? 7. Which low density gas does not burn? 8. What two chemicals are made when a fuel burns? BOILING, MELTING, CONDENSING, FREEZING, SUBLIMING 9. What do you call the change when a liquid becomes a gas? 10. What do you call the change when a gas becomes a liquid? 11. What do you call the change when a solid becomes a liquid? 12. What is the name used when solid carbon dioxide changes straight to a gas?
4 ANSWERS to Gases in the Air Quiz 1 1. Which gas in the air is needed for living things to stay alive? OXYGEN 2. What gas makes up most of the air? NITROGEN 3. Which gas explodes with a loud bang? HYDROGEN 4. Name both low density gases that can make balloons float in the air? HYDROGEN AND HELIUM 5. Which gas can be cooled down to make dry ice? CARBON DIOXIDE 6. Which gas was shown to make water acidic? CARBON DIOXIDE 7. Which low density gas does not burn? HELIUM 8. What do you call the change when a liquid becomes a gas? BOILING 9. What do you call the change when a gas becomes a liquid? CONDENSING 10. What do you call the change when a solid becomes a liquid? MELTING 11. What two chemicals are made when a fuel burns? CARBON DIOXIDE AND WATER 12. What is the name used when solid carbon dioxide changes straight to a gas? SUBLIMATION
5 ANSWERS to Gases in the Air Quiz 2 NITROGEN, OXYGEN, CARBON DIOXIDE, ARGON, HYDROGEN, HELIUM, WATER 1. Which gas in the air is needed for living things to stay alive? OXYGEN 2. What gas makes up most of the air? NITROGEN 3. Which gas explodes with a loud bang? HYDROGEN 4. Name both low density gases that can make balloons float in the air? HYDROGEN AND HELIUM 5. Which gas can be cooled down to make dry ice? CARBON DIOXIDE 6. Which gas was shown to make water acidic? CARBON DIOXIDE 7. Which low density gas does not burn? HELIUM 8. What two chemicals are made when a fuel burns? WATER AND CARBON DIOXIDE BOILING, MELTING, CONDENSING, FREEZING, SUBLIMING 9. What do you call the change when a liquid becomes a gas? BOILING 10. What do you call the change when a gas becomes a liquid? CONDENSING 11. What do you call the change when a solid becomes a liquid? MELTING 12. What is the name used when solid carbon dioxide changes straight to a gas? SUBLIMING
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