There is a special temperature for every substance called the melting point. When a solid reaches the temperature of its melting point, it can become a liquid.
There are many simple ways to prevent erosion. One of the simplest forms of preventing erosion is with vegetation and by establishing root systems that hold the soil together. You can also use geotextiles, fertilizers and also build retainer walls to keep the soil intact and prevent erosion.
Freeze it in a freezer this will change it from liquid to solid
An anion is a negatively charged ion.
Hope this helps xox :)
Reactivity<span> refers to a chemical property </span>
