Level 2
Level 3

Unit 3


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boil
If a liquid boils, it reaches the temperature where bubbles rise up in it and it produces steam.
change
to become different
freeze
If something freezes or is frozen, it becomes hard and solid because it is very cold
swim
If something freezes or is frozen, it becomes hard and solid because it is very cold
wash
to make something clean
beautiful
very attractive
boring
not interesting or exciting
fun
something that gives you enjoyment or pleasure
great
excellent; very good
happy
pleased and in a good mood, especially because something good has happened
interesting
something that keeps your attention because they are unusual, exciting, or have lots of ideas
popular
liked by many people
sad
unhappy
an animal
something that lives and moves but is not a person, bird, fish, or insect
a beach
an area of sand or rocks next to the sea
cactus
a plant that grows in deserts
a camel
a large animal that lives in the desert and has one or two humps (= raised parts on its back)
a desert
a large, hot, dry area of land with very few plants
a dolphin
an intelligent animal that lives in the sea
a kangaroo
a large Australian animal that moves by jumping on its back legs
a koala bear
a large Australian animal that moves by jumping on its back legs
a national park
a large area of park for use by the public, usually an area of special natural beauty
a panda
a large, black and white animal that lives in forests in China
a plant
a living thing that grows in the soil or water and has leaves and roots
a rainforest
a forest with a lot of tall trees where it rains a lot
a rock
a large piece of stone
sand
a substance that is found on beaches and in deserts
the sea
a large area of salt water
a seal
an animal with smooth fur that eats fish and lives near the sea
a shark
a large fish that has sharp teeth and a pointed fin on its back
a tree
a tall plant that has a wooden trunk and branches that grow from its upper part
a turtle
an animal which lives in or near water and has a thick shell covering its body for protection
wildlife
animals and plants that grow independently of people, usually in natural conditions
Level 4