GRADE 10-SCIENCE
Week 8
Name
Section
LESSON Application of Mirrors and Lenses in Optical Instruments
Mirrors and Lenses Answer the crossword puzzle Read the description and choose the answer from
the given words in the box
Across
Down
1. An outward-curved lens
3. Light from us bounces off of a mirror to show us
2. Where a wave moves apart
how we look
4. An inward-curved lens
5. The _refract light entering the eye and
6. This either refracts, reflects or absorbs light to sends it to the back of the eye
change the way we view objects
8. transfers impuise to the brain for sight
7. if we look at a table and cannot see through it 9. This object uses different lenses to magnity and
the table is
enhance the appearance of an object we are
10. The focuses light waves on the retina observing
11. A
regulates the amount of light 14. An optical tool that uses refraction to separate
entering the eye
different wavelengths that make up white light
12. This device uses highly concentrated light 15. A sensitive membrane at the back of the inside
13. Most windows are
because we can
of an eye
see through them and they absorb a little light. 19. The act of seeing
16. Able to be seen
17.
makes things visible
18. We use this to see our reflection
20. Our eyes go through this process to give us
sight
21. transmission of some light but can cause it to
distort
12
Microscope
convex
Rarefaction
Pupil
15
Focal Point
Concave
Opaque
Reflection
17
Prism
Retina
Refraction
Transparent
Visible
Lense
Sight
Mirrors
10
Cornea
Translucent
Optic Nerves
Laser
20
Light​