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Science Revision
Semester 2 topics
Question | Answer |
---|---|
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 |