Give an example of a material that contains that carbohydrate.
1. glucose
2. fructose
3. maltose
4. sucrose
5. lactose
6. starch
7. cellulose & chitiin
8. glycogen

First of all the fundamental level of giving examples is understanding what carbohydrates are mainly sugars and starches that have 3 principal types of nutrients.

Some examples I found:
glucose (monosaccharide)
fructose (monosaccharide)
galactose (monosaccharide)
sucrose (disaccharide)
lactose (disaccharide)
cellulose (polysaccharide)
chitin (polysaccharide)
starch

Aphysical change is one that you can put in and remove like a ham sandwich. the stuff you put in there can be changem its not permanet. a chemical change is on that can't be change thats permanet. like when you make a cake and bake it. you can't get those ingredients back.

Perimeter? wheres the answers