a sponge
Any squeezable container which causes variation in inner pressure, thus causing fluids (air or liquids) to go in or out.
Chloroplasts converts light energy into chemical energy.This is similar to solar panel
A kilometer is a unit of measurement for distance and not a household item.
what household item is the shaped like a pyramid
Yes Plus Fabric Softener is a household item. Yodora Deodorant is a household item. Yellow peppers are a household item.
A household item that is similar to cytoplasm in a cell could be the gel inside a stress ball. It surrounds and supports the contents of the stress ball, much like how cytoplasm supports the organelles within a cell.
A bag of flour or sugar is a common household item that is around 5 pounds in weight.
Table salt (sodium chloride) is a household item that is made from chlorine and sodium.
now
...appliance?
Yes
A candle