1
131.
conductor
126.
evaporation
136.
microscope
145.
extinct
133.
circuit breaker
147.
immune system
149.
healthy
134.
telescope
130.
electricity
142.
volcano
132.
insulator
127.
condensation
139.
asteroid
140.
comet
137.
magnification
148.
vaccine
128.
gravity
129.
friction
150.
nutrition
138.
satellite
135.
lens
146.
antibiotic
141.
nebula
144.
fossil
143.
earthquake