May 8, 2018 You need: Clean paper (2) / Pencil Progress report and/or make up work to turn in Composition of Air notes Warm Up: Mental Math – be ready! I CAN: compare and contrast the composition of the atmosphere (using states of matter)

Swagrrr No 7th test ELA 7 Math 7 Math I May 2018 Sunday Monday Tuesday Wednesday Thursday Friday Saturday   Forces and energy Magnets 1 Magnets / eclectricity 2 Electricity 3 Catch up 4 Review Test Assess MobyMax Milkshakes 5 6 7 Comp of Air Layers, Water Cycle 9 Atmosphere 10 11 12 13 Mother’s Day 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 No School Memorial Day 29 30 31 APRIL 30 Progress reports Swagrrr No 7th test ELA 7 Math 7 Math I

June 2018 EOG testing Busch Gardens NCFE testing 1 2 3 4 5 6 7 Sunday Monday Tuesday Wednesday Thursday Friday Saturday   1 Atmosphere 2 3 4 5 6 7 8 Last day (due to snow) 9 EOG testing Busch Gardens NCFE testing

Any of your work!! Name Date Period Title Name Date Period 1. No.

S L G States of Matter olid iquid as ADD heat Melting ADD heat Subtract heat Freezing (crystals) Subtract heat Condensation S L G olid iquid as Most kids KNOW the info, but haven’t put in the vocabulary – and some just totally flub the idea of SUBTRACTING heat…they want to “add cold” which leads to a great discussion about heat energy (not cold energy). Cold is a descriptive word that describes the absence of heat energy. I make the kids draw this chart out multiple times. ADD heat Melting ADD heat Evaporation

Demo – hand-warmer Explain the hand-warmer demo Ms.Garris showed.

How long will the candle burn? 21% Oxygen in all Jars – but that equals a smaller amount of oxygen in a small jar Largest Jar = ____ sec Medium Jar = ____ sec Small Jar = ____ sec

Hypothesis: (What do you think will happen?) Candle demo Dec. 7, 2017 Question: How does the amount of air affect how long a candle will burn? Hypothesis: (What do you think will happen?) Data: (Make a chart to record your burn times) Trial 1 Trial 2 Trial 3 Average Large Jar Medium Jar Small Jar Conclusion: (Was your hypothesis correct? Why or why not?)

Mixture of Gases in Air All Other Gases Argon = 0.93% Carbon Dioxide = 0.04%

How long will the candle burn? 21% Oxygen in all Jars – but that equals a smaller amount of oxygen in a small jar 1) Largest Jar = ____ sec Medium Jar = ____ sec Small Jar = ____ sec 2) Largest Jar = ____ sec Medium Jar = ____ sec Small Jar = ____ sec

NITROGEN A major part of proteins, including DNA Dilutes (thins out) the oxygen – too much or too little oxygen and we would die! Turned into useful form by nitrogen-fixing bacteria

OXYGEN Necessary to survive! Our cells use oxygen to create energy All of the oxygen in our atmosphere has been created by plants – photosynthesis! Burning requires oxygen

CARBON DIOXIDE Used by plants for photosynthesis A greenhouse gas – carbon dioxide helps keep our planet warm Increases in CO2 have been making the planet warmer: global warming!

TRACE GASES OZONE helps filter out the sun’s harmful rays ARGON is used in light bulbs because it will not catch fire even in extreme heat WATER VAPOR can condense to form clouds HELIUM inflates balloons and blimps

Why is the atmosphere important? Has oxygen that living things need to survive. Traps energy from the sun keeping earth warm Protects living things from dangerous radiation from the sun.

Hot vs Cold lab Put your lab set up onto white paper (it makes it easier to see) Be ready to observe and RECORD your observations.

Water Cycle Picture Precipitation Largest Tree Atmosphere Energy 100% Process Sun Flows Moves 75% Earth Transpiration Evaporation Ocean Condensation Heat Run-off

Condensation Precipitation Transpiration Run-off heat Flows Evaporation ocean largest 75 process moves earth atmosphere

Making a foldable: Layers of the Atmosphere On the inside, include notes about each layer: 1) How thick is this layer? 2) What’s in the air here? 3) What is the temperature? 4) What happens here? *Use the textbooks (pg. 56-61) and the green “Weather & Water” books (pg. 9-11) to find the answers. *Decorate the outside with pictures of what happens in each layer. Layers of the Atmosphere 400 km Thermosphere 80 km Mesosphere 50 km Stratosphere 12 km Troposphere 0 km

TROPOSPHERE Thinnest Layer (0-12 km) Average Temperature of 25°C (Temperature drops as you go higher) All of Earth’s weather happens here. Air here contains water & dust. Most of the atmosphere’s air is here (this layer is very dense).

STRATOSPHERE 10-50 km above earth’s surface There is almost no water or dust in this layer. Contains the OZONE LAYER (which absorbs UV radiation from the sun) Very cold, until the top of the layer, where it warms to 0°C.

MESOSPHERE 50-80 km above Earth’s surface. Temperature plunges to -90°C (the coldest in the atmosphere) Meteors burn up here while entering the atmosphere.

THERMOSPHERE Thickest layer (80-400 km above Earth’s surface). Air is extremely thin. Atmospheric gases fade into outer space. Temperature can spike to 1,800°C.