The product changes and cannot be reversed.
For example:
Wood burning in the fireplace. Ashes remain. You cannot revert the process and bring back the log of wood.
This is an example of chemical change
Physical change is when the product can be reversed.
For example:
If you mix salt in a glass of water. You mix it until it dissolves. You can bring back the salt by heating up the water in a pan. The water evaporates but the salt remains on the bottom.
This is an example of physical change.
All the fossils have a small layer of glaciation between them. The glaciation is also a glacier. Underneath all of the fossils is volcanic ash. The volcanic ash was from a long time ago and it was compounded together and formed together. Fossil A, B, and C are all different types of fossils, yet they are still dead creatures that went through the same stages. They died, rotted, and then sunk into the ground and eroded into the rock to form a fossil.
A 1-year-old female is diagnosed with croup. the most likely cause of this disease is
C. Conduction
Conduction is where two objects directly make contact, transferring energy. For example, when you touch a hot piece of metal, your finga con(ducts) heat.
