Science Exam - Grade 2

Light can pass through some materials and is blocked by others. Which term describes a material that allows light to pass through completely?

• Transparent

• Translucent

• Opaque

• Reflective

The size of a shadow is affected by which of the following factors?

• The position of the object

• The position of the light source

• Both the position of the object and the light source

• Neither the position of the object nor the light source

What is the main source of light for Earth?

• The Moon

• The Sun

• Stars

• Fire

Which of these objects allows light to pass through completely?

• Glass window

• Wooden door

• Mirror

• Wall

What happens when light is blocked by an object?

• The object becomes invisible

• A shadow is formed

• The object glows

• The light disappears

Which of these objects can create THE DARKEST shadow?

• Transparent plastic

• Cardboard

• Clear water

• Air

The closer the light, the smaller the shadow. True or False

• True

• False

Opaque objects will block light and create the darkest shadow.

• True

• False

Shadows are the longest in the morning and evening.

• True

• False

Light cannot get through the _______________ material.

• opaque

• transparent

• translucent

• reflective