Benefits invention create observations discovery progress explore science experiments technology

1.My brother is very good at natural …………...…. subjects such as Chemistry and Physics.

2.Simply speaking, …………….…… is the tools and machines that help to solve problems.

3.The scientific method is a way to ask and answer scientific questions by making ………..….. and doing experiments.

4.While scientists study how nature works, engineers ………… new things, such as products, websites, environments, and experiences.

5.In science, you should repeat your ………… several times to make sure that the first results weren’t just an accident.

6.Scientific …….... brings us many conveniences and advanced machines, such as computers, automobiles, and so on.

7.There are many ……………….... of technology in the classroom, especially as students are becoming increasingly digitally literate.

8.The ………………... of penicillin is very useful because it has saved lots of lives.

9.The key individuals responsible for the …………….... of the double helix structure of DNA were Francis Crick and James Watson.

10.Scientists are planning to send people to …………………. Mars in the near future

Hãy tính thể tích ở điều kiện tiêu chuẩn của một hỗn hợp khí gồm: 73,6 gam
O 2 , 16,8 gam N 2 , 57,2 gam CO 2 và 32 gam SO 2 .