
Grades 1–3 (P.1–P.3)

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The preview is watermarked and lower resolution than the file you receive.
The preview is watermarked and lower resolution than the file you receive.
Science Physical Science worksheets on Changes in Materials for Grades 1–3 (P.1–P.3), difficulty 1/5. PDF, downloadable as soon as payment clears.
Curriculum indicators practised
Before you begin
Look at a material changing and write the name of the change, such as melting, freezing, dissolving, evaporating, tearing, breaking or changing shape.
10 questions, 10 points - Write the name of the change under each picture; there is no word bank - Heating and cooling: ice in the sun and a candle (melting), water in a freezer (freezing), a boiling pan (evaporating), a wet shirt on the line (drying) - Sugar stirred into water (dissolving) - Force: tearing paper, a glass breaking, modelling clay into a bear and rolling dough (changing shape) - A separate answer key is included
Use after children have seen real changes, such as ice melting or sugar dissolving. Allow about 15 minutes. - Put the key's words on the board as a word bank if children cannot yet write them unaided - Follow up by sorting the pictures into two groups: changes caused by heating or cooling, and changes caused by something we do with force
- Mixing up dissolving (sugar in water) and melting (ice, candle wax) - Thinking the sugar has disappeared once it dissolves - Thinking the white cloud above the pan in Q10 is smoke - Not realising the water in the shirt in Q7 has gone because it evaporated
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By a teacher who works in Thai classrooms, for Grades 1 to 6.
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