| A | B |
| canine | member of the dog family |
| carnivore | animal that eats only meat |
| domesticated | an animal that has been tamed and trained to live with and be of use to humans |
| feline | member of the cat family |
| herbivore | animal that eats only plants |
| primitive | something that is in an early stage or has a simple form |
| reptilian | describes a reptile |
| vertebrate | an animal with a backbone |
| habitat | the place where an organism/animal naturally lives and grows |
| omnivore | living thing that eats both plants and animals |
| synonym | words that have the same meaning |
| antonym | words that opposite meanings |
| cause | why something happens; an event that leads to another event |
| effect | what happens as a result of another event |
| comparative | adjective that compares two things |
| superlative | adjective that compares more than two things |
| explorer | someone who explores a new place |
| printing press | invention developed in the 1450s that allowed for the mass production of books |
| compass | navigation tool that helps find direction |
| astrolabe | navigation tool used to find latitude based on the height of the Sun or the North Star |