dung does i think!
Modern hot air balloons do not have sand bags because the air input is easily controlled for lift. Hot air balloons used to have sandbags to weigh them down until lift off and sand was gradually dumped to gain height in the air.
Mud is more likely than sand to fossilize an organism because mud has finer particles that can fill in cavities and preserve details of the organism's structure. In contrast, the looser nature of sand may not provide the same level of protection and support for fossilization.
Sand can be effectively used as insulation in construction projects by creating a layer of sand between two walls, which helps to trap air and reduce heat transfer. The small particles of sand create pockets of air that act as insulators, preventing the loss of heat or cold. This method is cost-effective and environmentally friendly, providing thermal insulation for buildings.
Sand can make a squeaky sound when small air pockets between the grains are compressed as you walk on it. The friction between the grains of sand rubbing against each other can also create a squeaky noise.
Sand is made form a mixture of mineral grains (mainly quartz or calcite) which are themselves compounds. If there is water or air flowing though the sand at a fast rate, then it can also be a suspension.
rock + water= sand
I think you mean why does hot sand heat the air by convection... The sand is heated by the sun, and the air is touching the sand, which is hot, so by convection, the sand is heating the air.
stone and air
Yes, sand has a lot of air in it. That is why when you pour water on sand, the water goes right through it.
Sand usually cools faster than air because sand has a higher thermal conductivity, meaning it can transfer heat more efficiently than air. This enables the sand to lose heat more quickly to its surroundings compared to air.
because in air there is heat and in sand its dark and cool
Modern hot air balloons do not have sand bags because the air input is easily controlled for lift. Hot air balloons used to have sandbags to weigh them down until lift off and sand was gradually dumped to gain height in the air.
A grain of sand is heavier than the same volume of air because sand has mass and air is mostly composed of gases, which have lower density and weight.
air+rock
you add air with rock Air +Rock
of sand,air,and acid
he chetches sand