a large group of reptiles that roamed Earth until they became extinct over 65 million years ago
dinosaur
the bones of the head that surround the brain and give the head its shape
skull
a deep narrow valley with steep sides Vietnamese: khe núi, hẻm núi
a ravine
to look at or consider a person or thing carefully and in detail in order to discover something about them Vietnamese: kiểm tra, khám (sức khỏe)
examine
o remove earth that is covering very old objects buried in the ground in order to discover things about the past Vietnamese: khai quật
excavate
to notice that a person has a special ability or quality and to help them to become successful
discover
a level of material, such as a type of rock or gas, that is different from the material above or below it, or a thin sheet of a substance
layer
someone who studies fossils as a way of getting information about the history of life on Earth Vietnamese: nhà cổ sinh vật học
paleontologist
the soft grey or black powder that is left after a substance, especially tobacco, coal, or wood, has burned Vietnamese: tro
ash
rock made from sediment left by the action of water, ice, or wind Vietnamese: đá trầm tích
sedimentary rock
an activity that is done for enjoyment Vietnamese: trò tiêu khiển
pastime
best liked or most enjoyed Vietnamese: yêu thích nhất
favorite
to lose your balance after knocking your foot against something when you are walking or running, or to cause someone to do this
trip
to discover the facts or truth about something
determine
a wish to have or be something, especially one that seems difficult to achieve
dream
to say you will definitely do something
promise
