tar: a black substance, sticky when hot, used especially for making roads
noun there is tar on the street
mineral :a valuable or useful chemical substance that is formed naturally in the ground
noun diamond is a mineral
crab:a ase creature wiht five pairs of legs and a round ,flat body covered by a shell, or its flesh eaten as food:
noun in spongebob abia a crab
impression: an idea or opinion of what something or someone is like
noun in a museum there was an impression of a fish
sediment: a soft substance that is like a wet powder and consists of very small pieces of a solid material that have fallen to the bottom of a liquid:
noun I fell into a well
sponge: a soft substance that is full of small holes and can absorb a lot of liquid, and is used for washing and cleaning
noun I watch spongebob
dinosaur: a type of reptile that became extinct about 65,000,000 years ago. There were many different types of dinosaur, some of which were extremely large.
noun on TV there was a dinosaur
mud: earth that has been mixed with water
noun I met a mute
cast: the actors in a film, play, or show
noun I spread water
fossil: the shape of a bone, a shell, or a plant or animal that has been preserved in rock for a very long period
noun at school they taught a fossil of an insect
mold: a hollow container into which you pour a soft or liquid substance so that it will cool or harden into the shape of the container:
noun my mom uses a cookie cutter
trilobite: a simple, flat sea creature that lived in the earliest period of life on earth, with a hard outer layer and a body in three parts
noun the trilobite is an animal
horseshoe: a U-shaped piece of metal that is attached to the bottom of a horse's hoof to protect it:
noun horses have abrasions
footprint: the mark made by a person's or animal's foot
noun in the abia dinosaur footprints museum
preserved: to keep something as it is, especially in order to prevent it from decaying or being damaged or destroyed:
verb in the museum a preserved mammoth
carbon: a chemical element that exists in its pure form as diamond or graphite, and is an important part of other substances such as coal and oil, as well as being contained in all plants and animals
noun in a charcoal barbecue
fish: an animal that lives in water, is covered with scales, and breathes by taking water in through its mouth, or the flesh of these animals eaten as food:
noun I ate a grilled fish
trace: to find someone or something that was lost
verb in the kitchen there was a trace of ham
amber: a hard, transparent, yellowish-brown substance that was formed in ancient times from resin (= a substance produced by trees) and is used in jewellery
noun there was a frozen sancudo in amber