Glossary results for "S"

the state of being safe from harm or danger

a group of stars that form the shape of an archer with a bow and arrow in the night sky

a solution of salt in water

a clear, viscous fluid that is produced in the mouth

a chemical element with the symbol Sm and atomic number 62

a granular material made up of small, loose particles of rock and minerals

a sedimentary rock that is composed of sand-sized grains that are cemented together by minerals

a type of soil that is made up of mostly sand particles

a planetary scientist who has dedicated her career to studying exoplanets

a term used in chemistry to describe a solution that has dissolved as much solute as it can at a given temperature

the sixth planet from the Sun and the second-largest planet in our solar system

a particle physicist who helped discover the J/psi meson

a way of comparing the size of two or more things

a systematic study of the natural world

drawings or representations of objects or processes that are used to communicate scientific information

a person who studies the natural world using the scientific method

a group of stars that form the shape of a scorpion in the night sky

a chemical element with the symbol Sg and atomic number 106

a period of time that is marked by different weather patterns

to produce and release a substance

a naturally occurring material that is made up of solid particles that are transported by water, wind, or ice

a type of rock that is formed from the accumulation of sediment

a small, reproductive unit of a plant

the process of moving seeds away from the parent plant

a young plant that has just germinated from a seed

the study of earthquakes and the waves that they generate

a chemical element with the symbol Se and atomic number 34

the ways that we receive information from the world around us

able to detect small changes

a device that detects a physical quantity and converts it into an electrical signal

to keep things apart or distinct

the ninth month of the year in the Gregorian calendar

a type of electrical circuit where the components are connected in a single line

the clear liquid part of blood that remains after the blood cells and clotting factors have been removed

the waste water from homes, businesses, and industries

an area where light is blocked by an object

a structure that protects people from the elements, such as rain, snow, wind, and sun

the part of the body that connects the arm to the trunk

a tool used to separate mixtures

the ability to see

a change in something that can be used to communicate information

a language that uses hand movements, facial expressions, and body language to communicate

a chemical element with the symbol Si and atomic number 14

a chemical element with the symbol Ag and atomic number 47

the qualities or characteristics that two or more things have in common

a basin that is used to collect and drain water

related to the skeleton

the outer covering of our body

the hard, bony structure that protects the brain

a fine-grained, metamorphic rock that is formed when mudstone is subjected to high pressure and heat

a type of precipitation that is made up of small, partially melted ice pellets

a long, narrow tube that is part of the digestive system

a relative term that means something is not as big as something else

has a surface that is free of bumps or roughness

to let something sit in liquid for a long time

a chemical element with the symbol Na and atomic number 11

something that is not hard

related to the sun

devices that convert sunlight into electricity

materials that have a definite shape and volume

can be dissolved in a liquid

a substance that is dissolved in a liquid

a mixture of two or more substances that are evenly mixed together

a liquid that can dissolve other substances

a form of energy that is transmitted by waves

a taste that is often described as being sharp or tangy

the half of the Earth that is south of the equator

a reusable spacecraft that was used to carry people and cargo into space

a group of animals or plants that can breed with each other and produce fertile offspring

a single example of something

a range of different colours

a chemist who worked for 3M in the 1960s

the long, flexible bone that runs down the back of the body

a device that stores energy when it is stretched or compressed

to crush it or press flat

a type of food that plants make

not moving

a strong and durable metal that is made from iron and carbon

the part of a plant that grows above the ground

a British theoretical physicist, cosmologist, and author who achieved fame for his work on black holes and relativity

the part of a flower that receives pollen

a substance that makes you feel more awake, alert, and energetic

a muscular organ in the abdomen that helps to digest food

tiny openings on the surface of leaves

a naturally occurring, solid mass that is made up of one or more minerals

the separation of things into layers

having a smooth, curved shape that helps an object move through air or water more easily

the ability of an object to resist force without breaking or deforming

to make something longer or wider

a chemical element with the symbol Sr and atomic number 38

the way that something is put together

when a solid turns into a gas without melting first

to make something go under liquid

a sweet substance that is made up of carbon, hydrogen, and oxygen

a chemical element with the symbol S and atomic number 16

one of the four seasons of the year

a star

a red, sore, or peeling skin that happens when your skin is exposed to too much sunlight

a device that tells the time by the position of the sun

the outside of an object

water that flows over the ground after it rains or snows

the force that acts on the surface of a liquid

the ability to live and continue to exist

can be used for a long time without running out

a basic taste that is perceived by taste receptors on the tongue

a device that can be used to turn something on or off