Independent variables are the ones that you change in an investigation., Dependent variables are the ones that you measure to see if there has been an effect., Control variables are the ones that you keep the same, to make your investigation a fair test., You repeat an investigation to make your results more reliable

Табло

Визуален стил

Опции

Шаблон за превключване

Възстановяване на авто-записаната: ?