Question

hands - on lab observe states of matter
observe the shapes of a solid and liquid in different containers. investigate how the volume of a solid, liquid, and gas may change and explain how the properties of each state of matter differ.
procedure and analysis
step 1 draw 10 ml of air into the syringe. record the initial volume in the table below.
step 2 tighten the cap onto the end of the syringe, if one is available. alternatively, you can press your finger against the end of the syringe to act as a cap. push in the plunger. record the final volume and any other observations. safety note: always point the tip safely away from others when pushing in the plunger.
step 3 observe the shape of the marbles in the cup. remove the plunger and place the marbles in the syringe. then replace the plunger so the bottom of the plunger touches the top of the marbles. record the volume and observations.
step 4 tighten the cap. push in the plunger. record the volume and observations.
step 5 observe the shape of the water in the cup. remove the marbles from the syringe and replace the plunger. then draw 10 ml of water into the syringe. record the volume and observations.
step 6 tighten the cap. push in the plunger. record the volume and observations.
observations

	gas (air)	solid (marbles)	liquid (water)
shape in syringe	not visible
initial volume
final volume
additional observations

Explanation:

Step1: Initial volume and shape for gas (air)

Initial volume of air is 10 mL as per step 1. Shape is not visible. In syringe, shape is not visible and volume is 10 mL initially. When plunger is pushed, volume decreases and air is compressible.

Step2: Initial volume and shape for solid (marbles)

Initial shape of marbles in cup is spherical. When placed in syringe, they take the shape of the lower - part of the syringe they fill. Initial volume is the volume occupied by marbles in syringe. When plunger is pushed, volume does not change as solids are incompressible.

Step3: Initial volume and shape for liquid (water)

Initial shape of water in cup is the shape of the cup. Initial volume drawn into syringe is 10 mL. When plunger is pushed, volume does not change as liquids are nearly incompressible.

	Gas (air)	Solid (marbles)	Liquid (water)
Shape in syringe	not visible	shape of part they fill	shape of syringe
Initial volume	10 mL	volume occupied by marbles	10 mL
Final volume	decreases (e.g., 5 mL if pushed hard)	unchanged	unchanged
Additional observations	Compressible	Incompressible	Nearly incompressible

Answer:

	Gas (air)	Solid (marbles)	Liquid (water)
Shape in syringe	not visible	shape of part they fill	shape of syringe
Initial volume	10 mL	volume occupied by marbles	10 mL
Final volume	decreases (e.g., 5 mL if pushed hard)	unchanged	unchanged
Additional observations	Compressible	Incompressible	Nearly incompressible