Materials used for experiment:
- big box/sink → water container (each container is a station.)
- 2 glass jars/2 beakers/2 graduated or measuring cylinders *these will be referred to as jars in the method.
- 3 balloons
- Erlenmeyer flask (triangular shaped)
- graduated cylinder
- baking soda
- fire source
Experiment 3 & 4
Read the method and predict how the gases in the balloon may be different.
Predict what will happen with the balloon-hand-water-tank system.
Explain what happened to the balloon.
Summary: All the above concepts are connected to matter:
- Fluids take the shape of what they are in. Fluids flow. Water and air are both fluids.
- Fluids exert pressure on objects in them. Air pressure pushes on everything in the atmosphere.
- Fluids will move from places of high pressure to places of low pressure.
- Air can displace water. Displace means take the place of.
- Matter has a variety of properties. There are different kinds of gases, each with similar and different properties.
- Density is mass divided by volume (density = massvolume).
- Objects that are less dense than the fluids they are in will rise.
- If the temperature of a gas increases in an open container, the gas will becomes less dense and rise.