Chemical reactions and catalysts. A chemical reaction involves a chemical change, which happens when two or more particles (which can be molecules, atoms or ions) interact. For example, when iron and oxygen react, they change to a new substance, iron oxide (rust).
It's important for parents to start weaning babies from bottles around the end of the first year and start getting them comfortable drinking from cups. The longer parents wait to start the transition, the more attached kids become to their bottles and the more difficult it can be to break the bottle habit.
Should my baby's first foods be fruits or vegetables? You can start weaning your baby with either fruit or vegetables (Forestell and Menella 2007). Once your baby is six months old, you donât have to introduce foods in any particular order. The main thing is to introduce your baby to as many flavours and soft textures as you can soon after sheâs six months old.