The iron-nickel alloy melts cause of the hot temperatures
Carbohydrates
Carbohydrates are a type of nutrient are found in many foods including: fruits, vegetables, cereals, grains and sweets. Carbohydrates serve as a fuel, providing us with energy and playing a role in brain and organ functioning. Carbohydrates also provide fiber, that is important for excretory functions. There are many types of carbohydrates that have different effects on the body, such as: simple carbohydrates, complex carbohydrates, sucrose, fructose, lactose, etc.
Heat water using the sun during the day, and use it during the cold night.
Use a solar panel to charge batteries during the day, and use the power at night.
A physical change occur when objects or substances undergo a change that does not change in which the composition of a substance changes or one or more substances combine or break up from new substances.
