1) which of the following is an element ? a) water b) heat c) gold d) volume 2) what state of matter is oxygen in air ?  a) solid b) liquid c) gas 3) matter is made of element  a) true b) false 4) which of the following is not a physical property of metals ? a) shiny b) conducts electric energy c) can't be pulled into cables 5) what is the chemical symbol of carbon ? a) C b) Ca c) K 6) what does chemical symbol Na stand for ? a) group of elements b) sodium c) calcium d) magnesium 7) what is the chemical symbol of fluorite  a) F b) Fl c) Fe 8) what does chemical symbol He stand for?  a) hydrogen  b) helium  9) what is the chemical symbol of nitrogen ? a) Ni b) He c) Na d) N 10) what is the chemical symbol of silver ? a) Si b) S c) I d) Ag 11) what is the chemical formula of water?  a) HO b) OH c) O2H d) H2O 12) what are the elements in group 18 (the far right) of the periodic table called? a) metals  b) Noble gases  c) alkaline earth metal  13) which of the following is liquid ? a) ice  b) milk  c) snow  d) meat 14) a gas has definite shape and volume ? a) true  b) false 15) which is a gas ? a) oil  b) table  c) water vapor  d) vinegar  16) what is the chemical symbol of iron ? a) Fe b) F c) I d) Io

science

สั่งพิมพ์
ฝัง

ลีดเดอร์บอร์ด

สไตล์ภาพ

ตัวเลือก

สลับแม่แบบ

คืนค่าการบันทึกอัตโนมัติ: ใช่ไหม