Cambios físicos y estados de la materia
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Science
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8th Grade
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aldo roldan
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24 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Cuál de los siguientes es un cambio físico?
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Qué característica define a un cambio físico?
Cambia la sustancia original
No altera la composición química
Es irreversible
Genera una nueva sustancia
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Cuál de estos cambios no corresponde a un cambio físico ni constituye una evidencia de él?
Cortar papel
Agua hirviendo
Romper vidrio
Clavo oxidado
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
¿Qué ocurre a nivel molecular en un cambio físico?
Las moléculas se transforman en otras
Se forman nuevas sustancias
Las moléculas solo cambian de posición
Se rompe el núcleo del átomo
5.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
¿Qué observación indica un cambio físico?
Formación de gas
Cambio de color y olor
Formación de un nuevo material
Cambio de estado
6.
FILL IN THE BLANK QUESTION
30 sec • 2 pts
Uno de los elementos presentes en la molécula del agua
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la fórmula química del agua?
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