This Grade 5 worksheet introduces physical changes through everyday examples like melting ice, dissolving sugar, and folding paper. Students complete sentence corrections, fill-in-the-blank items, and short-answer questions to show that a physical change does not form a new substance and is usually reversible, building strong NGSS 5-PS1 understanding. Students compare reversible state changes with simple Grade 5 examples like ice to water to steam in clear hands-on contexts that solidify ideas.
Style:
Chemical and Physical Changes
Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1. Fix the sentence:
When ice melts into water, the ice turns into a brand new substance with new properties.
Rewrite: When ice melts into water, it stays the same substance — water — just in a different state.
2. Fix the sentence:
Dissolving sugar in water creates a chemical change because the sugar disappears.
Rewrite: Dissolving sugar in water is a physical change because the sugar particles spread out but stay sugar.
3. Fix the sentence:
Cutting a piece of paper into smaller pieces makes a chemical change happen.
Rewrite: Cutting a piece of paper into smaller pieces is a physical change because the paper is still paper.
Part B: Fill in the Blank
Write the missing word or number on each line.
1. When water freezes into ice, this is called a physical change because no new substance forms.
2. Boiling water turns into water vapor, a gas; this state change is reversible because we can cool the vapor back into water.
3. When salt mixes evenly into water, the salt has dissolved in the water and forms a solution.
4. Folding a sheet of paper into an airplane changes its shape but not the material it is made of.
Part C: Short Answer
Answer each question in one or two complete sentences.
1. Explain why melting an ice cube is a physical change for a Grade 5 science class.
Melting an ice cube is a physical change because the ice and the water are made of the same substance — water molecules. Only the state changes from solid to liquid; no new material is formed, and the water can be frozen again.
2. Give two examples of physical changes you might see at home and explain why each one is physical.
Cutting an apple into slices is a physical change because the apple pieces are still apple. Boiling water on the stove is a physical change because the water turns into vapor but is still water — it can be cooled back into liquid.
Chemical and Physical Changes
★ Part A: Fix the Sentence
Each sentence has an error. Rewrite it correctly on the line.
1) Fix the sentence:
When ice melts into water, the ice turns into a brand new substance with new properties.
Rewrite: When ice melts into water, it stays the same substance — water — just in a different state.
2) Fix the sentence:
Dissolving sugar in water creates a chemical change because the sugar disappears.
Rewrite: Dissolving sugar in water is a physical change because the sugar particles spread out but stay sugar.
3) Fix the sentence:
Cutting a piece of paper into smaller pieces makes a chemical change happen.
Rewrite: Cutting a piece of paper into smaller pieces is a physical change because the paper is still paper.
★ Part B: Fill in the Blank
Write the missing word or number on each line.
1) When water freezes into ice, this is called a physical change because no new substance forms.
2) Boiling water turns into water vapor, a gas; this state change is reversible because we can cool the vapor back into water.
3) When salt mixes evenly into water, the salt has dissolved in the water and forms a solution.
4) Folding a sheet of paper into an airplane changes its shape but not the material it is made of.
★ Part C: Short Answer
Answer each question in one or two complete sentences.
1) Explain why melting an ice cube is a physical change for a Grade 5 science class.
Melting an ice cube is a physical change because the ice and the water are made of the same substance — water molecules. Only the state changes from solid to liquid; no new material is formed, and the water can be frozen again.
2) Give two examples of physical changes you might see at home and explain why each one is physical.
Cutting an apple into slices is a physical change because the apple pieces are still apple. Boiling water on the stove is a physical change because the water turns into vapor but is still water — it can be cooled back into liquid.
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9 Questions
15-20 minutes
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