7.1 - 7.3

Explain how the boy see the television:

Light comes from ________ to ________.

• his eyes; television screen

• television screen; his eyes

• television screen; television screen

• his eyes; his eyes

Is the television screen luminous or non-luminous?

• luminous

• non-luminous

Explain how the boy sees the book:

Light comes from the ________ to the ________.

The ________ reflects light to the ________.

• book; light bulb; boy's eyes; book

• light bulb; book; boy's eyes; book

• book; light bulb; book; boy's eyes

• light bulb; book; book; boy's eyes

Is the book luminous or non-luminous?

• luminous

• non-luminous

Explain how the boy sees the stars:

Light comes from the ________ to the ________.

• star; boy's eyes

• star; star

• boy's eyes; star

• boy's eyes; boy's eyes

Are the stars luminous or non-luminous?

• luminous

• non-luminous

Does the atmosphere transmit or absorb light? How do you know?

The boy cannot see stars during the day. Have they disappeared? Explain your answer in terms of light.

Look at yourself in the mirror and answer the following questions.

Is your image the same size as you?

Look at yourself in the mirror and answer the following questions.

Is your image upright?