Look-up History
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Show words looked up
Word |
# |
Date |
Definition |
Site |
Level |
| amphibian |
1 |
today |
a small animal that spends part of its life cycle in water and part of its life cycle on land. Amphibians hatch in water and breathe with gills. Then they develop lungs so the adults can breathe air. Amphibians are cold-blooded animals with skeletons inside their bodies. Frogs, toads, and salamanders are amphibians. [2 definitions] |
Kids |
Int. |
| mammal |
1 |
today |
a warm-blooded animal with fur or hair on its skin and a skeleton inside its body. Mammal mothers produce milk to feed their babies. Most mammals have four legs or two arms and two legs. Dogs, cows, elephants, mice, whales, and humans are all mammals. |
Kids |
Int. |
| country |
1 |
today |
a large area of land where people live under the same government or have the same culture; nation. [5 definitions] |
Kids |
Int. |
| military |
1 |
today |
having to do with planning, preparing for, or fighting in war. [3 definitions] |
Kids |
Int. |
| measurement |
1 |
today |
When we talk about measurement, we are talking about finding out the size or amount of something. When we measure something, we find out things like how heavy it is, how long it is, or how tall it is. |
WILD |
WILD |
| organ |
1 |
today |
a musical instrument with a keyboard. It is played by pressing keys attached to a device that forces air through pipes. [3 definitions] |
Kids |
Int. |
| family |
1 |
today |
a group made up of a parent or parents and their children. [5 definitions] |
Kids |
Int. |
| reptile |
1 |
today |
A reptile is a kind of animal. Snakes, turtles, and alligators are some animals that are reptiles. Reptiles are different from other kinds of animals because the temperature of their bodies depends on the temperature of the air or water around them. Some reptiles live in water, but most reptiles live on land. Reptiles have bones inside them, and they use lungs to breathe, but they don't have fur or hair on their bodies like mammals. Instead, they have hard coverings such as scales or a shell. |
WILD |
WILD |
| geology |
1 |
today |
the study of the physical structure of the earth and how it has changed over time. Geologists gain this knowledge by studying rocks. Some geologists study other planets. [2 definitions] |
Kids |
Int. |
| business |
1 |
today |
the activity of buying and selling goods or services. [6 definitions] |
Kids |
Int. |