Light/Cahaya

Sifat":
Merambat lurus
*pernah liat sinar laser bengkok sono-sini klo ga dipantulin/dibiasin?? klo iya, HANTU!!!
Dapat dipantulkan
*pastinya sama ky aslnya, coba klo bayangan di cermin BEDA sama yg asli, HANTU LAGI!!!
Dapat dibiaskan
*makanya jangan coba" nyemplung ke kolam berenang dangkal, taunya tenggelem he...he...he
Dapat berdispersi (putih)
*pernah liat pelangi kan?? pelangi tuh salah 1 contoh dispersi cahaya. kalo ga prnah KEBANGETAN!!!

Bedanya lensa dan cermin

Hari gini masi gak tau beda  lensa ama cermin??? KEBANGETAN BANGET deh kamu...
Tapi gpp, sini tak kasi tau...

Lensa

*Tembus pandang alias TRANSPARAN
*Membiaskan cahaya(BIAS)
-Lensa cembung(convex)+
-Lensa cekung(concave)-

Cermin

*Memantulkan cahaya secara hampir sempurna(PANTUL)
-Cermin cembung(divergen)-
-Cermin cekung(convergen)+

Udah yaa, ini di skolah, lw tau sndiri kan internetnya YA AMPUN......

Photosynthesis

Photosynthesis is a chemical reaction which happens in autotroph organisms, such as plants, and some protists. It only happens in organisms which have plastid (chloroplast) in their cell so that they can produce food by themselves (autotroph). It happens in leaf, in mesophyll (in palisade/spongy parenchyma tissue). The reaction is: 

6CO2+12H2O->C6H12O6+6O2+6H2O

To do photosynthesis autotroph organisms takes energy from light, especially sunlight. So usually photosynthesis happens in daytime. Some factors that effects photosynthesis:

1. Area of leaf
2. Number of chlorophyll
3. Number of stomata
4. Temperature
5. Wind
6. Water
7. Etc

Note: Please tell me if it's not-so-complete. Thank you.