
Les substàncies es transformen
Authored by Brian Mestres
Science
1st Grade
Used 3+ times

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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Característica que ens permet descriure els objectes per manipulació
color
forma
opacitat
duresa
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Com detectar canvis químics
Canvis de color i olor
Canvis de temperatura
Canvis irreversibles
Totes les anteriors són correctes
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Que són les propietats intensives
Són les que no depenen de la quantitat de substància analitzada.
Són les que depenen de la quantitat de substància que conté l’objecte analitzat.
Totes dues són correctes.
Cap és correcta.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quin d’aquests és un canvi químic?
Trencar un got
Fondre un glaçó
Podrir-se una poma
Dissoldre sucre en aigua
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Quina propietat física és intensiva?
Volum
Massa
Densitat
Forma
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Quan es forma un gas en una reacció (com bombolles), què ens indica?
Que és un canvi físic
Que la substància està bruta
Que s’ha escalfat massa
Que és un canvi químic
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
En una reacció química, com es diuen les substàncies inicials?
Productes
Reactius
Resultats
Elements
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