The U-tube shown below is immersed in hot water. X and Y are the red ink droplets present inside the tube. What will you observe after some time?

Why does a drop of ink spread slowly through the water when dropped in it ?

When a rectangular glass tube filled with water is heated as shown, which direction does a few drops of dye at X move?1 point

Four test tubes are filled with 10 ml of water each, and placed 10 cm away from the light bulb.The initial temperature of each test tube is measured.The tubes are then left in full exposure of the reflected rays.The temperature of each tube is taken every 5 minutes for 15 minutes.Which tube will experience the second highest rise in temperature at the end of the experiment?A- Matt BlackD- Shiny BlackC- Shiny SilverB- Matt White

Describe what is happening to the pencils in the image above as they sit in a glass of water. Then, name the phenomenon that causes this.

Test tubes containing ethanol have been placed in a water bath.The water bath has only just been switched on. The temperature of the water was recorded as it was heating up.Ethanol has a melting point of -114 °C and a boiling point of 78 °C.Identify the state of matter ethanol will be after 90 seconds.LiquidSolidGas