When an object is less dense than the fluid it is immersed in, it will experience a buoyant force pushing it up. This is due to the pressure difference between the top and bottom of the object, causing it to float or rise. It is the principle behind why less dense objects float in more dense fluids, like a boat on water.
Yes, saliva is less dense than oil. Saliva is composed primarily of water, whereas oil is made up of non-polar molecules that are less dense than water.
Granite
Travelling through a medium that is optically less dense. Vacuum is best.
As the air molecules heat up they move faster, spread apart and as a result the air becomes less dense. As it becomes less dense it will go upwards. Cool air will move to take the place of where the warm air was = wind! You have experienced this in the kitchen. When the stove is really hot and you open the door you will feel a blast of warm air hit you as it leaves the oven and goes upwards because it is less dense than the air in the kitchen
Because it is less dense than the material that makes up the earth's crust, but more dense than the material that makes up the air.
It becomes less dense.
No the density is like a solid like thing,humans,and places.
Earth is like a density column, because the inner core is the most dense, and it gets less and less dense as you go up top to the crust.
Air has a certain density. A hot air balloon heats air inside the balloon which causes it to become less dense. This is because the hotter something is, the more space it takes up. Less dense things float on top of more dense things (think of oil on water). You get enough less dense hot air, and the balloon will float up on top of the cold, dense air.
This is an example of refraction. When light moves from a more dense medium to a less dense one, it speeds up, causing it to bend away from the normal.
When dense,cold air meets less dense,warmer air, the warm air is pushed up
When dense,cold air meets less dense,warmer air, the warm air is pushed up
When dense,cold air meets less dense,warmer air, the warm air is pushed up
The Earth's atmosphere declines with altitude.
it is less dense that the water so it is boyuant and will go up to the surface
the density and temperature of the layers. The farther you go up, the less dense each layer is.
Yes, saliva is less dense than oil. Saliva is composed primarily of water, whereas oil is made up of non-polar molecules that are less dense than water.