list 3 properties of mixtures

MELTING OF ICE IS A PHYSICAL CHANGE.WHY

 Where do we get these food items from?

Find out where are the habitats of the polar bear and Penguin.For each animal , explain two ways in which it is well adapted to it's habitat

1. Setting of curd is a chemical change
2. Burning of wood and cutting it into small pieces are two different types of changes
3. Blowing of a balloon is fast irreversible change
4. Chopping of vegetables is reversible physical change
5. Switching on of the fans is a reversible physical change

cockroaches begin to move to their hiding places if the lights are switched on at night. what is the stimulus and the response in this case.

leaves of pine tree are needle like . give reason

why do we need to group materials