I n]have to find four crystalline substances and i found diamonds, salt and sugar can you guys give me two more. the reason why two is because I don't have diamonds to take to the classroom.

Look at your earrings...fake diamonds, are crystalline, unless glass.

Salt, sugar many forms, honey crystals if you can see them in the jar, quartz if you have a piece at home, or you can point to your teachers diamond and count it.

Certainly! Here are two more crystalline substances you can consider:

1. Quartz: Quartz is a common mineral that occurs in various forms. It is considered a crystalline substance and can be found in different colors and sizes. If you have a piece of quartz at home, you can use it as an example in your classroom.

2. Alum crystals: Alum is a chemical compound that forms beautiful crystals. You can find alum in the spice section of most grocery stores. Simply dissolve some alum in water, allow it to evaporate, and observe the formation of alum crystals.

Remember, when looking for crystalline substances, it's important to consider their physical properties. Crystals have a specialized internal structure, which gives them a characteristic shape and arrangement of atoms or molecules.