0.7. Discuss the different types of teeth along with their structure and function.
0.8. Show with the help of sketch that plants are the ultimate source of food.
0.9. Draw and label Human digestive system
Q.10. Describe the process of Silk production
0.11. How does conduction occur?
0.12. Differentiate between conductors & insulator.
Answers
7.
Basically teeth are 4 types. These are different in structure and fuction. They are
1. Incisors
2. Canines
3. Premolars
4. Molars
1. Incisors: Incisors are the first teeth to erupt between 6& 7 months. These are use to take bites of food.these are 8 in number in mouth.
2. Canines: These are very sharpest teeth.primary canines appear between 17-18 months. these are useful to ripping and tearing of food meretial.
3. Premolars: these are appear around at the age of 10. these are bicupsid in structure. these are used for chewing and grinding food.
4. Molars: These will appear between 12-18 months. these are also used for grinding and chewing food. The primary molars known as deciduous molars. The third molars are known as wisdom tooth.
8.
Find in attachment.
Light energy
Carbon dioxide
Oxygen is released
Cholorophyll in leaf
Glucose is formed
Water
Recall the process of photosynthesis.
9.
see the attachment
10.
see the attachment
11.
Conduction occurs when two object at different temperatures are in contact with each other. Heat flows from the warmer to the cooler object until they are both at the same temperature.
♦ For example, place a metal(which is now having low temperature) over an open flame(high temperature). After sometime you see the metal gets very hot.
12.
see the attachment
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