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Why do lotus have hollow stem?
Lotus is an aquatic plant fixed at the bottom of the pond. To reach the surface of the water lotus stems are thin & hollow.
Why does a pond skater insect not sink?
A pond skater insect is held up by surface tension.Water molecules have an attraction for each other. At the surface of the liquid there is no water in one direction (up, naturally) so the molecules at the surface are pulled with a net force downwards. This creates a surface layer which has a high viscous property (know as surface tension). To penetrate this layer requires a measurable force. Since the weight of a pond skater does not exceed this force it is held up by the surface of the water.
What are the adaptations of the pond skater?
Pond skaters, also known as water striders, have several adaptations that allow them to move effortlessly on the surface of the water. Their long, hydrophobic legs distribute their weight over a large area, preventing them from breaking the surface tension of the water. Additionally, their bodies are covered in tiny hairs that repel water, further aiding in their ability to stay afloat. Pond skaters also have specialized claws on their legs that help them grip the water's surface, providing stability as they move.
Why the water lily has broad leaves and a hollow flexible stem?
Water lilies have broad leaves to maximize surface area for photosynthesis and attract sunlight. Their hollow, flexible stems allow them to be buoyant in water, enabling them to float and reach the surface for sunlight and air.
Dose thin gold float in water?
Yes if only wetted at one side; this is caused by the surface tension of water and the hydrophobic surface behaviour of gold
What are three forces acting on a water glider when it is standing on a still pond?
When a water glider is standing on a still pond, three forces acting on it are gravity, buoyancy, and surface tension. Gravity pulls the water glider downwards towards the center of the Earth. Buoyancy, an upward force exerted by the water, counteracts the force of gravity, helping the water glider float. Surface tension, a cohesive force between water molecules at the surface, also supports the water glider by creating a thin film that resists the object from sinking.
What is the thin layer on earth's surface called?
Global Water
What is a soap bubble made of?
thin film of soap water that forms a sphere with an iridescent surface.thin film of soap water that forms a sphere with an iridescent surface. thin film of soap water that forms a sphere with an iridescent surface.thin film of soap water that forms a sphere with an iridescent surface. thin film of soap water that forms a sphere with an iridescent surface.thin film of soap water that forms a sphere with an iridescent surface. thin film of soap water that forms a sphere with an iridescent surface.thin film of soap water that forms a sphere with an iridescent surface.
What causes water to skid across a hot surface?
The water vapourizes and in doing so forms a thin gaseous layer between the water drop and the hot surface, thus causing the droplet to bounce across the surface.
Why mosquito does not sink on water surface?
Mosquitoes and other small insects can stay afloat on water because water exhibits a property called "surface tension", where a thin film "seems" to cover the water surface. This has something to do with intermolecular forces of attraction.
Why an air bubble in water burst as it emerges on water surface?
An air bubble in water bursts at the surface due to a decrease in surface tension. As the bubble rises, the water surrounding it is dragged along, stretching and thinning the surface layer. When the bubble reaches the surface, this thin layer breaks, causing the bubble to burst.
What is the attraction that causes water and other liquids to form drops and thin films?
Surface Tension
