| barnacle |
a small sea animal that attaches its shell to rocks, the bottom of ships, docks, and other objects in shallow parts of the ocean. Barnacles float freely in the ocean when they are young. They develop shells with sharp edges as adults. Barnacles are kinds of crustaceans. |
| buoy |
a float attached by line to the bottom of a body of water to mark a location. [3 definitions] |
| buoyancy |
the capacity to float or rise to the top in a liquid or gas. |
| buoyant |
able to float or keep something else floating. [1/2 definitions] |
| float |
any object that floats on water. A float is often used to hold up something else on or in the water. [2/4 definitions] |
| fly1 |
to cause to wave or float in the air. [1/9 definitions] |
| fog |
Fog is many, many tiny water drops that float in the air near the ground. Fog looks like a cloud that has come down near the earth. When fog is thick, it is very hard to see through. [1/4 definitions] |
| foggy |
When something is foggy, it is full of or covered by fog. Fog is many, many tiny water drops that float in the air near the ground. Fog looks like a cloud that has come down near the earth. When fog is thick, it is very hard to see through. [1/2 definitions] |
| ghost |
Some people believe that when someone dies, their spirit can sometimes stay on the earth. This spirit is called a ghost. People who believe in ghosts say that a ghost looks like the person who has died or like something white that can float through the air. [1/2 definitions] |
| hot-air balloon |
a bag made of thin material that is inflated with hot air, causing it to rise and float in the atmosphere. Large hot-air balloons can be attached to a basket or gondola, and used to transport people or equipment. |
| life jacket |
A life jacket is something you wear to stay safe when you are in a boat or near water in some other way. If you fall in the water wearing a life jacket, the life jacket will make you float. |
| life preserver |
a device used to help a person float in water and not drown. A life preserver is usually made in the shape of a ring, belt, or vest. |
| lily pad |
A lily pad is a leaf of a water lily. Lily pads are round and flat, and they float on top of the water. |
| plate tectonics |
(used with a singular verb) a theory that scientists use to explain the movement of continents, the eruption of volcanoes, and other changes or events in the earth's geology. The theory of plate tectonics says that the earth's crust is made up of separate sections that are like very large plates. These sections move around constantly because they float on melted rock. The movement of these sections of the crust causes earthquakes. |
| powder |
Powder is something that people make by grinding something solid into very, very small bits. The bits are often so small and light that they can float for a while in the air. A substance that has the same look and feel as this but made in a different way is also called "powder." [1/3 definitions] |
| raft1 |
a flat platform made of materials that can float, such as wood or barrels filled with air. Rafts are often used to carry people or goods. [2/3 definitions] |
| stream |
to float or wave. [1/7 definitions] |
| surface |
The surface of something is the part that forms the top of it or is on the outside of it. After we eat at a table, we often clean the surface of it--we don't clean the other parts of the table like the legs. When we float in a swimming pool or lake, we lie on the surface of the water. [1/3 definitions] |
| water lily |
A water lily is a plant that grows in a pond or lake. Water lilies have large, round, flat leaves that float on top of the water. Water lilies grow pretty flowers. |
| wood |
Wood is the material that makes up the hard parts of a tree. Wood is often used to make things like furniture, floors, or parts of buildings. Wood can burn. It can also float on top of water. [1/2 definitions] |