Balloons: Rising to the occasion Amy Buchert- GALACTIC

You will need to click the mouse to show answers for activities. This will allow you to control the timing of answers shown. We suggest that students keep a journal. It is critical for students to use writing skills to explain their answers. Take time to discuss possible solutions to problems. TEACHER TIPS

The atmosphere has physical properties that are measurable and predictable.(VI A4) These lessons are designed to reinforce the State Science Standards. Heat causes materials to increase in temperature and feel warmer, or change state (gas, liquid or solid). (III C2) Heat/Cold Warm objects lose heat to cooler ones until they reach the same temperature. (III C3)

These activities will address the following Hazelwood Objectives for fifth grade: Heat/Cold Demonstrate the effects of heat on air Be able to tell that hot air is lighter than cold air

Advantages Since heat rises, we can use it for transportation. Since heat rises, it keeps our earth at a desirable temperature by carrying some heat away. Since cool air sinks, the house stays cooler on floor level during the summer. Since heat rises, in a fire, the cool air will be at ground level. This is why you should crawl out of a fire.

Disadvantages Since heat rises, it’s more difficult to keep warm in the winter, because the heat goes to the ceiling. Since heat rises, in a fire, the smoke and heat all travel up to where we breathe when standing. Since heat rises, and cool air sinks, sometimes damaging weather results.