Protractor investigation worksheet answers mathbits
Soulshatters scripts
Both worksheets have answers in the powerpoints. The powerpoint also models how to measure the angles with a protractor accurately. The lesson is also sequenced so that pupils should by the end of it be able to carry out the refraction practical, explain refraction and explain why refraction + reflection causes light to disperse into a rainbow!
23.4.2 Angle measuring devices (inclinometer and protractor) 23.4.3 Laser 23.4.4 Tape measure and ruler 23.4.5 Plumb bob and line 23.4.6 Level 23.5 Reagents/Materials: 23.5.1 Sodium Rhodizonate 23.5.2 Buffer Solution 23.6 Hazards/Safety: 23.6.1 It is the responsibility of the firearm examiner to employ appropriate safety and health practices.