Matter classification

3. Found in all living organisms and in different forms like diamond and graphite.
4. A precious metal known for its yellow color and use in jewelry and electronics.
5. A breakfast food where grains are mixed with milk, but individual pieces remain distinct.
7. A vital liquid compound made of two hydrogen atoms and one oxygen atom.
9. This light, colorless gas is often used to fill party balloons.
12. A common seasoning dissolved completely in water, found in oceans.
16. A popular dish with a mix of toppings like cheese, vegetables, and meat on a dough base.
17. A type of steel that resists rust and corrosion, commonly used in kitchen utensils and appliances.
21. A refreshing drink made from lemon juice, sugar, and water mixed evenly.

1. A gas exhaled by humans and used in carbonated drinks.
2. A snack made of oats, nuts, honey, and sometimes chocolate chips, where the ingredients are visibly distinct.
6. Used in baking; also a common household cleaner.
8. A sour liquid commonly used in cooking and cleaning; a mix of acetic acid and water.
10. A simple sugar that provides energy to cells and is found in sweets and fruits.
11. A metal alloy primarily made of copper and tin, used for sculptures and medals.
13. A gas that is crucial for respiration and makes up 21% of Earth's atmosphere.
14. Combined gases like nitrogen, oxygen, and small amounts of other gases that we breathe.
15. A popular hiking snack composed of nuts, dried fruits, and sometimes chocolate.
18. A light metal used in rechargeable batteries for electronics and mood-stabilizing medications.
19. A mix of vegetables and dressing.
20. An alloy made mainly of iron and carbon, known for its strength and use in construction.