Which of the following releases chemicals such as nicotine, tar and carbon monoxide? a. cigarettes b. lungs c. smoke d. asthma
a. cigarettes
15
Which of the following can cause cancer? a. cilia b. alveoli c. oxygen d. tar
d. tar
15
Which of the following diseases is thought to be influenced by inheritance and being exposed to smoking in the womb or as a young child? a. cancer b. asthma c. nicotine d. cigarettes
b. asthma
15
TRUE OR FALSE: Wearing safety goggles is important when performing experiments.
TRUE
15
TRUE OR FALSE: Measuring cylinders come in different sizes.
TRUE
10
TRUE OR FALSE: Food such as probiotic yoghurt contains lots of helpful bacteria.
TRUE
5
TRUE OR FALSE: Bunsen burners are used to heat substances to very high temperatures.
TRUE
5
TRUE OR FALSE: Safety is not important in a science laboratory.
FALSE
5
TRUE OR FALSE: Breathing is something that we do without even thinking about it.
TRUE
5
Substances that dissolve are described as ____________.
soluble
25
_____________ are made up of different elements.
Compounds
20
An __________ is made up of only one type of atom.