1st grade writing examples

📚 Quick Study Guide

• ⚛️ Atoms are the basic building blocks of matter. Think of them as the tiny LEGO bricks that make up everything!
• ➕ Molecules are formed when two or more atoms join together. Like building a bigger LEGO creation!
• 💧 A compound is a molecule made of different types of atoms, like water ($H_2O$) which has hydrogen and oxygen.
• 🧮 Elements are pure substances made of only one type of atom, such as gold (Au) or oxygen (O).
• 🌡️ Matter exists in three main states: solid, liquid, and gas. Think ice, water, and steam!

🧪 Practice Quiz

1. Which of the following is the smallest unit of matter that retains the chemical properties of an element?
   1. Atom
   2. Molecule
   3. Compound
2. What is formed when two or more atoms join together?
   1. Element
   2. Molecule
   3. Mixture
3. Which of the following is an example of a compound?
   1. Oxygen ($O_2$)
   2. Gold ($Au$)
   3. Water ($H_2O$)
4. What is a pure substance made of only one type of atom called?
   1. Compound
   2. Element
   3. Mixture
5. Which state of matter has a definite volume but no definite shape?
   1. Solid
   2. Liquid
   3. Gas
6. What is the chemical symbol for gold?
   1. Au
   2. Ag
   3. Go
7. Which of the following is NOT a state of matter?
   1. Solid
   2. Liquid
   3. Energy