Set aside a time and a place for homework. The kitchen table right before or after dinner is a favorite homework scene for many families. Be careful not to bribe your child. Homework is a natural part of being a student. If you make it a priority, your child will do the same.
Science experiments are often a child's first homework.
A parent may need to help the child obtain supplies and do simple experiments at home. These may be reported on in school. Children are more interested in the world about them if they can contribute. Children learn best from active involvement with their learning. Reading a text or hearing a lecture is a part of learning, too, but not as effective at this age as the involvement process.