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العلوم الصفوف 5–6

Change of State

1) I can identify melting, freezing, evaporation, condensation and boiling. 2) I can describe how thermal energy changes particle motion during a change of state. 3) I can use particle motion to explain what happens when matter gains or loses thermal energy. 4) I can justify a change of state using evidence about thermal energy and particle motion.

شاركها Amro Abdoun منذ 3 ساعات 26 س اعتُمدت 0 مرة
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معاينة الأسئلة

تُعرض أول 5 من أصل 26 سؤال — سجّل مجاناً لاعتماد الاختبار كاملاً ولعبه مع صفّك.

1

What happens to the particles in a substance when it gains thermal energy?

A They move slower and come closer together.
B They move faster and spread apart.
C They stop moving completely.
D They change into a different type of particle.
2

Which change of state occurs when a solid gains enough thermal energy to become a liquid?

A Evaporation
B Melting
C Freezing
D Condensation
3

During freezing, what happens to the thermal energy and particle motion of a substance?

A Thermal energy is released, and particles move faster.
B Thermal energy is released, and particles move slower.
C Thermal energy is absorbed, and particles move slower.
D Thermal energy is absorbed, and particles move faster.
4

Which of the following best describes evaporation?

A A gas changes into a liquid.
B A liquid changes into a solid.
C A liquid changes into a gas at its surface.
D A solid changes directly into a gas.
5

What happens to the particles of a gas when it condenses into a liquid?

A They lose thermal energy and move farther apart.
B They gain thermal energy and move closer together.
C They gain thermal energy and move faster.
D They lose thermal energy and move closer together.

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