Changes_that_Matter_Undergoes_Grade_4.pptx

Changes that matter undergoes

1. Changes that Matter Undergoes Grade 4 Science

2. What is Matter? Matter is everything around us. It has mass and takes up space. Examples: water, air, rocks, and even living things are made of matter.

3. States of Matter Matter exists in different states: - Solid: Has a definite shape and volume (e.g., ice) - Liquid: Takes the shape of its container (e.g., water) - Gas: Has no definite shape or volume (e.g., air)

4. Physical Changes A physical change occurs when matter changes its appearance but not its composition. Examples: - Ice melting into water - Tearing paper - Cutting fruit

5. Chemical Changes A chemical change happens when a new substance is formed. Examples: - Burning wood - Rusting iron - Baking a cake

6. How to Identify Changes Signs of a Physical Change: - Change in shape, size, or state - No new substance is formed Signs of a Chemical Change: - Color change, gas produced, or a new smell - New substances are formed

7. Simple Experiment: Melting Chocolate Try this at home: - Take a piece of chocolate and place it in a warm area. - Watch it melt! This is a physical change as the chocolate only changes its state, not what it's made of.