Del thinks she can see Allan in the mirror so she draws light rays to prove it. Is this true? Why/Why not?
Not true! The incident and reflected angles of the rays that Del drew are not the same!
Which of the following diagrams are incorrect?
Diagrams 1 & 6 are incorrect. Angles are not equal
This unknown material is a ________ object (transparent/translucent/opaque)
opaque
The angle of incidence is denoted by angle ___________________.
Angle B
Who can Allan see in the mirror?
Only Ellie
Cooking oil and water is an example of a (mixture/solution)?
Mixture
Distillation is the process of getting clean water by evaporation and condensation. In which part (A/B) can we get clean water?
Part B
Name at least 2 separating mixture method to make clean water out of this:
Hand picking; filtration; evaporation; condensation; distillation
A conglomerate rock is an example of a (mixture/solution)
Mixture
Based on the light intensity data, which letter (A,B,C,D) represents the light intensity for a night when the moon is full?
A
Flour is added to water as shown in the picture. Is this a mixture or a solution?
Mixture - flour does not mix evenly! Only found at one part
A mixture contains A & B (see the table). How do we separate A & B?
Use a magnet
Arnold thinks he can make the laser hit the detector by using the mirror maze. He draws light rays to prove it. Are his drawings correct?
The reflected ray in the mirror at the lower right has a wrong angle!
Which separating mixture method is shown below?
Decantation
How many degrees is the angle of reflection in this diagram?
40 degrees!
Why is a chocolate bar is considered a solution?
The components are difficult to distinguish from one another; the properties are the same for any part of the chocolate bar
Which separating mixture method is shown below?
Filtration