Let’s go through each picture one by one and decide if it shows a
chemical change.
A chemical change means something new is made — like when things burn, rot, or react to form different substances. You can’t easily undo it.
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1.
Broken bottle – This is just glass breaking. It’s still glass. No new substance. →
Not chemical
2.
Fire – Fire happens when something burns. Burning makes smoke, ash, heat — totally new stuff! →
Chemical change
3.
Rotten pear – When fruit rots, bacteria break it down into different chemicals. Smell changes, color changes — it’s not the same anymore. →
Chemical change
4.
Light bulb with battery – The light comes from electricity flowing. The bulb doesn’t turn into something else. It’s physical (energy change). →
Not chemical
5.
Paper shredder – Paper is cut into strips. Still paper. Just smaller pieces. →
Not chemical
6.
Saw cutting wood – Wood is being cut. Still wood. Just shaped differently. →
Not chemical
7.
Whisk mixing batter – Mixing ingredients doesn’t make them chemically change yet — unless you bake it! Right now, it’s just stirring. →
Not chemical
8.
Haircut – Cutting hair doesn’t change what hair is made of. Still hair. →
Not chemical
9.
Fireworks – Fireworks explode and make colors, smoke, sound — that’s a big chemical reaction happening fast! →
Chemical change
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So, the pictures that show chemical changes are:
- Fire
- Rotten pear
- Fireworks
Final Answer:
Color the circles under:
→ The fire
→ The rotten pear
→ The fireworks
Parent Tip: Review the logic above to help your child master the concept of chemical change worksheet.
