Science MCQs

Parasitism benefits the parasite at the host's expense.

Phloem transports sugars from leaves to other parts.

Melting ice is a physical change.

Pitch depends on the frequency of the sound wave.

Plastics are synthetic materials made from polymers.

Pollen grains contain sperm cells for fertilization.

Pollination is the first step in plant reproduction.

Potential difference is measured in volts.

Predation involves a predator catching and eating prey.

Primary colors of light can be mixed to create other colors.