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Science Revision

Semester 2 topics

QuestionAnswer
How does lunar eclipse occur? Earth blocks sun rays from moon
How does a solar eclipse occur? moon blocks sun rays from Earth
What is a spring tide? when the sun and moon are on the same side of the earth
what is the purpose of the cell membrane? to keep all the contents of the cell inside
what does MRS GREN stand for? movement, reproduce, sensitivity, Nutrition, excretion, respiration, grow.
what did Hubble discover? how old the universe is and information about seasons on different planets
What type of probe was the Path finder? "lander: which studies a particular planet.
What is the difference between weight and mass? Weight depends on the gravity but mass never changes
A drop of pond water is to be viewed using a microscope. If the 10 X eye piece is used with the 40 X objective lens, what is the total magnification? 400x
Created by: mmcdougall.12