below the temperature at which water turns to ice

to use something in a wrong, incorrect, or inappropriate way or the wrong purpose

a large piece of electrical kitchen equipment used for keeping food and drink cool [= fridge]

to cause something to start or develop, especially, suddenly

the conditions that affect a situation or event

to become very hot such that the liquid turns to steam

a substance that is not a solid or a gas, for example, water or milk

to turn to ice as a result of extreme cold

happening without being planned

a country in East Africa between Kenya and Mozambique

the thick yellowish-white fatty liquid that rises to the top of milk, used in coffee or to make cakes or ice cream


a large piece of electrical equipment in which you can store food for a long time at a low enough temperature that it stays frozen


a combination of two or more different things or people


a flat piece of wood, metal or plastic with raised edges, used for carrying things, especially food or drinks


the scientific study of objects, substances, and natural forces such as light and heat.


the scientific study of living things


a glass cup with straight or slanted sides and a lip, used in chemistry for holding or measuring liquids.


a piece of equipment for controlling the flow of water from a pipe


to give a talk or a series of talks to a group of people on a subject (usually done by an expert on that subject)


something that you feel or do in response to something that happened or we said


approximately but not exactly


increasing or decreasing at the same rate


the largest number or amount that is possible


used for, relating to, or resulting from experiments


a scientist who has special knowledge in physics


doubting or not believing [=sceptical]


an attitude or belief that claims or statements are not true or that something will not happen


to say or believe that something is the result of a particular action or thing


to think that something is true, although you have little or no proof or knowledge


to describe the qualities of someone or something in a particular way


a quality or feature of someone or something that is typical of them


a minor component in a liquid in which a solid or gas is mixed


the movement in a gas or liquid in which warm gas or liquid goes up and cold gas or liquid goes down


a continuous movement of a liquid or electricity 


the speed at which something happens


something such as a box or bottle to store of hold things


a quality or characteristic that something has


an example, event, or fact that shows that something else is true, or shows what something looks like


the importance of an event, action, thought, or belief


to hold onto something tightly


(about an opinion) formed before you really have enough knowledge or experience to make a conclusion


an idea, belief, or opinion


an opinion that you form about something after thinking about it carefully or having seen strong, convincing evidence


in a way that appears to be true although it might not be


the quality of continuing to try to do something difficult


not based on facts or good logic