Medicines used to kill weeds are known as: Herbicides
Study of Sound is called: Acoustics
Study of lights is called: Optics
Study of Water is called: Hydrology
__ observe that galaxy are not in stationery: . Edwin Hubble
Building blocks of the universe is called: Galaxies
Clusters of billions of store called: Galaxies
A Fuse is used to prevent: Excess of current
The field in which Einstein won Nobel Prize: Physics
Shooting star is another name for: Meteor
