A large hole in the side of a hill, cliff or mountain, or one that is underground
Cave (The area is also home to one of the largest underground cave and lake systems in Latin America.)
A high area of rock with a very steep side, often on a coast
Cliff (Keep well away from the edge of the cliff.)
A short, thick plant with a lot of branches
Bush (A rose bush)
A slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles
Glacier (Wow, look at those glaciers!)
If something is empty, it does not contain any things or people.
Empty (An empty house/street)
Having more confidence or hope about something
Encouraged (She felt encouraged by their promise of support.)
The bank of a river
Riverbank (We had a picnic on the riverbank.)
Describes something that has no water or other liquid in, on, or around it
Dry (My hat kept my hair dry.)
Very good or impressive in some way
Amazing (This wine is really amazing.)
A forest in a tropical area which receives a lot of rain
Rainforest (A tropical rainforest)
A very large piece of ice that floats in the sea
Iceberg (The ship hit an iceberg.)
Thick and difficult to see through
Dense (Dense fog)
The area of land along the edge of the sea or a lake
Shore (You can walk for miles along the shore.)
Unable to think clearly or to understand something
Confused (People keep telling me different things and I'm getting very confused.)
One of the many parts of a tree that grows out from its trunk
Branch (Birds often make nests in the top branches of the tree.)
Not expected and making someone feel surprised
Surprising (He gave a rather surprising answer.)
Feeling happy and calm because nothing is worrying you
Relaxed (She looked relaxed and happy walking along with her two boys.)
Difficult, in a way that tests your ability or determination
Challenging (This has been a challenging time for us all.)
A line of higher water which moves across the surface of an area of water, especially the sea
Wave (At night, I listened to the sound of the waves breaking/crashing against the shore.)
A hard, natural substance that is found in the ground
Stone (A stone wall/floor)
Water, especially from a river or stream, dropping from a higher to a lower point, sometimes from a great height
Waterfall (We walked for an hour and arrived at the waterfall.)
Making a lot of noise
Noisy (A noisy crowd of fans)
Making little or no noise
Quiet (Can you be quiet, please?)
Anxious because you are thinking about problems or unpleasant things that might happen
Worried (She's really worried about her son.)
A hill of sand made by the wind on the coast or in a desert
Sand dune (We got to see a lot of sand dunes while exploring the desert.)
A flat, green part of a plant that grows from a stem or branch
Leaf (A lettuce leaf)