2. 1.Wash your hands before getting inside
the classroom.
2.Sit properly.
3.Avoid talking if the teacher is
discussing at the front.
4.Raise your hand if you want to answer
or have something to clarify/ask.
5.Stop teasing or bullying your
classmates’ status, religion and
cultural backgrounds.
3.
4.
5. What do you need in
order to live? What
do you inhale? What
do you exhale?
6. How does oxygen get
into our body?
Likewise; how does
carbon dioxide get out
from?
9. Mixtures with big and fine components can be separated by sieving.
Sieving involves using a strainer or a big screen to separate the components
of solid mixtures. The strainer allows only the fine particles through it and prevents
the larger ones. The sieving technique is used in separating fine sand from rocks in
the mixtures of gravel and sand for road building and other construction projects .
10.
11. 1. Based on your activity, how can dry mixtures be
separated?
2. Can you identify the mixtures that separated?
What about the mixtures that are not separated?
3. What device can be used in sifting dry mixtures?
4. Where can this dry mixtures be found?
12. Name activities at home or in
the community that use
sieving in separating dry
mixtures.
14. In your activity, you separate a dry
mixture using sieving or sifting.
Mixtures with big and fine components
can be separated by sieving.
15. Sieving involves using a strainer or a big
screen to separate the components of solid
mixtures. The strainer allows only the fine
particles through it and prevents the larger
ones.
16. The sieving technique is used in separating fine sand
from rocks in the mixtures of gravel and sand for
road building and other construction projects .
17. Cooks for example, sift flour to get a smaller
particle size for baking leaving larger particles
of flour in the sifter above the screen.
