Oil, natural gas and coal are examples of …
What is the main cause of seasons on the Earth?
Helium is used in gas balloons because it is ...
The chemical name of common salt is
An ECG shows the functioning of the
Sound cannot pass through
The study of the behaviour of substances below 1830C
Which are the smallest parts of elements
What suffix you need to make profession from the next verbs: invent, achieve, discover, educate?
Choose the correct relative pronoun: A person _________studies or does research in science.
Choose the right list of words related to the Internet and social network.
What means abbreviation FAQ?
Створюйте онлайн-тести
для контролю знань і залучення учнів
до активної роботи у класі та вдома