Dye Behavior in Temperature Variations

The video demonstrates an experiment comparing the behavior of dye in hot and cold water. The teacher sets up two beakers, one with boiling water and the other with ice water, and adds red and blue food coloring to each. Observations reveal that the dye disperses differently depending on the water's temperature, highlighting the impact of temperature on molecular movement. The experiment concludes that temperature significantly affects how dye molecules behave in water.

What is the temperature of the water in the right-hand beaker?

• Lukewarm

• Very cold

• Boiling

• Room temperature

Which color of food coloring is added to the left-hand beaker?

• Blue

• Green

• Yellow

• Red

What is the color of the dye added to the right-hand beaker?

• Yellow

• Blue

• Green

• Red

What is the main difference observed between the dye in hot water and the dye in cold water?

• The dye in hot water spreads faster

• The dye in cold water changes color

• The dye in hot water sinks to the bottom

• The dye in cold water evaporates

What happens to the dye molecules in the hot water?

• They sink to the bottom

• They clump together

• They spread out quickly

• They change color

What factor is concluded to affect the behavior of the dye molecules?

• The temperature of the water

• The amount of water

• The size of the beaker

• The type of dye

Does the color of the dye affect its behavior in water?

• Yes, it changes the speed of diffusion

• Yes, it changes the direction of diffusion

• No, only the temperature affects it

• No, it changes the temperature of the water