Chemical : any basic substance that is used in or produced by a reaction involving changes to atoms or molecules
Noun The government has pledged to reduce the amount of chemicals used in food production.
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thief
Give points!
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25
rocket
Go to first place!
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gift
Win 25 points!
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baam
Lose 5 points!
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Asteroid : one of many large rocks that circle the sun
Noun Scientists are hoping an asteroid will clue them in about early life on earth.
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Bacteria : very small organisms that are found everywhere and are the cause of many diseases
Noun a colony of bacteria
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Rabbits : a small animal with long ears and large front teeth that moves by jumping on its long back legs, or the meat of this animal eaten as food
Noun a pet rabbit
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Prehistoric times : describing the period before there were written records
Adjective prehistoric man/humans/animals
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Marble : a small ball, usually made of coloured or transparent glass, that is used in children's games
Noun Ventral surface of thorax and abdomen brown, more or less extensively suffused and marbled with bluish or greenish grey.
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eraser
Reset score!
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seesaw
Swap points!
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rocket
Go to first place!
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lifesaver
Give 20 points!
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Limestone : a white or light grey rock that is used as a building material and in the making of cement
Noun Limestone fragments and a few silicified grains (chert) are present, within a calcite spar cement.
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lifesaver
Give 25 points!
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shark
Other team loses 5 points!
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shark
Other team loses 10 points!
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thief
Give points!
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Paleontologist: In this book we find out how paleontologists go about looking at the effects of impact events and determining their roles in biological changes.
Noun Now my childish image is of a paleontologist who has discovered his favorite dinosaur.
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Earth : the planet third in order of distance from the sun, between Venus and Mars; the world on which we live
Noun The earth takes approximately 3651/4 days to go round the sun.
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Granite : a very hard, grey, pink, or black rock, used for building
Noun Al-rich relic material from the formation of the rapakivi granite melt is another source of assimilation.
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Arthropod : a type of animal with no spine, a hard outer skin, legs with bones joined together, and a body divided into different parts, for example a spider, crab, or ant
Noun After the final visual count, the cages were carefully emptied with a blower-vac to obtain near-total numbers of arthropods
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Coyote : a small wild animal like a dog that lives in North America
Noun Some birds are killed by golden eagles or coyotes
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mammal : any animal of which the female feeds her young on milk from her own body. Most mammals give birth to live young, not eggs
Noun Humans, dogs, elephants, and dolphins are all mammals, but birds, fish, and crocodiles are not.