Take a straw and cut it into two.  Dip the first straw into a glass of water and keep the second straw on top of the first straw as shown in the figure and then blow hard.  Water rises in the first straw.  Why?

The density of air increases in the first straw, so the water is pulled up.Air pressure increases in the second straw, so it pushes the water upAir pressure increases in the first straw, so the water rises up. Air pressure reduces in the first straw, so the water rises up. Air pressure reduces in the second straw, which increases the air pressure in the surroundin

When you drink water, you suck air out of the straw.  Why does this lift the water up?

Put water and a pencil in a glass. Observe the glass from the side. What does the interface between water and air look like?1 pointThe pencil looks straight.The pencil looks bent (V-shaped).The pencil looks curved (U-shaped).

Haikal went for a walk at the park with his father one morning. He noticed that the field was wet and there were water droplets on the grass blades. Curious, he asked his father, “It didn’t rain last night but why are there water droplets on the grass blades?”   Read LessQ1Explain how the water droplets form on the glass blades

ook at the picture below. What process occurs in plants which would cause water to form on the side of the glass?