NATURAL SC 6°

UNIT 6: MATTER

LUNES 30:

💡 Answers of act. 1, 2, 3, 4 and 5, p.93

1. a) rigid, strong, waterproof, insulator;
b) insulator, absorbent;
c) insulator, fragile, waterproof;
d) conductor, rigid, strong;
e) waterproof;
f) flexible, insulator.

2. a) Mass;
b) Volume;
c) Density of an object is its mass per unit volume.

3. Pure substances: silver, oxygen;
Mixtures: tea with sugar, coffee with milk, distilled water, soil, air, seawater, fresh water.

4. a) P; b) C; c) P; d) P; e) C; f) C

5. a) false (Combustion needs oxygen to burn matter);
b) false (Metal reacts with oxygen to produce rust);
c) true;
d) true;
e) false (Natural products can oxidise too);
f) false (During fermentation, fungi (yeast) produce alcohol).

💡 Today's Lesson

💡 Do act. 2, p. 92. 

💡Reinforcement Concepts: quien pueda que imprima la ficha, recorte y pegue los conceptos con sus definiciones en el cuaderno. Si no podéis imprimirla, no importa, copiad directamente las definiciones en el cuaderno.

JUEVES 26:

💡 Today's lesson: revise Unit

 > Repasar todo lo visto del tema, tanto en el libro como lo publicado en el blog.

 > Hacer los ejercicios 1, 2, 3, 4 y 5 de la pag. 93


LUNES 23:

💡 Answers of act. 4, 5 and 6, p.89

4. Both use heat to evaporate liquid – in evaporation the vapour dissipates, whereas in distillation it is collected.
5. Decantation, evaporation, filtration, magnetic separation (depending on the material); Magnetic separation; Decantation, distillation
6. Your own answers.

💡Today's Lesson: 

Unas fichas de repaso. Quien pueda que las imprima; si no, hacedlas en el cuaderno.

VIERNES 20:

💡 Answers of act. 1, 2 and 3, p.89

1. The scrap metal and recycling industry; mining industries
2. Yes/No (Your own answer).
3. Examples: washing machines, dishwashers, coffee machines, vacuum cleaners, air conditioning systems, etc.

💡Today's Lesson: 

SEPARATING MIXTURES
Review p. 88 and read p. 89

EVAPORATION

DISTILLATION 

💡 Do p.89 activities 4, 5 and 6.


MIÉRCOLES 18:

💡Answers of activities p. 87

1. Physical changes can include melting, freezing, crushing, cutting, chopping, etc. Chemical changes include combustion, oxidation and fermentation. The main characteristic is that physical changes do not alter composition of the substance, but chemical changes do.
2. Oxygen; heat and light
3. Rust is produced on oxidised metal, which we can see and feel.
4. Bacteria or fungi and sugars (carbohydrates). Carbon dioxide is produced. It breaks down plant and animal matter in the process of decomposition.
5. Fermented products: beer, yoghurt, cheese, wine.

💡Today's Lesson: 
SEPARATING MIXTURES p. 88

💡Let's see three ways of separating substances:

 MAGNETIC SEPARATION

DECANTATION

FILTRATION

💡CAN YOU TRY ANY OF THESE PROCESS AT HOME?

(We will continue with Evaporation and Distillation in the next lesson)

💡Do p.89 activities 1, 2  and 3.

LUNES 16:

Repasar con el siguiente video:

Leer CHEMICAL CHANGES p. 86 y 87.
Dibujar esquema con los diferentes tipos de cambios químicos en los materiales. (Podeis enviarme foto del esquema por el Class Dojo)

Hacer los cinco ejercicios de la p. 87 (con el próximo post publicaré las soluciones).

No os olvideis de hacer el proyecto sobre OXIDATION que os llevasteis el último día para hacer en casa.🍏