solid

Firm and not easy to bend, break, or pierce

Hard and solid to the touch, not easily pressed

Does not bend because it is stiff

Flowing and not solid, like water when warm

Not solid because it has an empty space inside

Being in the form of a gas rather than a liquid or solid

Very strong and not likely to fail or be wrong

Feeling safe and confident after a time of doubt or worry

Very strong and not likely to break or change

A person or thing you can depend on for strong support

Firm land you can stand on instead of water

Food that is not a drink and you chew before you swallow

A strong proof that someone was somewhere else when a crime happened

Electronic devices that use solid materials like semiconductors instead of vacuum tubes

A single, even color with no pattern or shade change

A condition of a substance when it keeps its shape and does not flow, like rock or ice

Having one color with no pattern

An area of physics that studies how solid materials behave with electricity, magnetism, and light

A 3D shape with all the same regular flat faces, like a cube or tetrahedron

A strong basic plan that helps organize work and guide actions

An engine that burns solid fuel to push a vehicle into the sky

Part of math about shapes that have length, width, and height like cubes, spheres, and pyramids

A shape with length, width, and height like a cube or sphere

A measure that shows how much space an object appears to take from a point in three dimensions

An engine that burns solid fuel to push a rocket or missile

A part of a fort filled with earth or stone to make it stronger against attack

A solid mixture where atoms of one type go into another's crystal, like in alloys

A rocket that uses solid fuel to make hot gas and push it forward

A three-dimensional shape with identical regular flat faces, like a cube

A solid metal in which atoms of other elements mix evenly into its structure

A three-dimensional shape whose faces are the same flat shapes with all sides equal and equal angles between them

An animal that has a hard, single foot not split into two toes, like a horse