2ND GRADE SCIENCE LIGHT AND MATERIALS

Which one of the following object is a light source?

• mirror

• torch

• aluminium foil

What is our natural light source?

• Moon

• Sun

• Venus

What is the satellite of the Earth?

• Moon

• Venus

• Sun

• Jupiter

Which one of the following object reflects the light well?

• mirror

• wood

• paper

What is the name of the rock represented in the picture?

• Granite

• Quartz

• Sandstone

What is the name of the rock represented in the picture?

• Sandstone

• Granite

• Quartz

Does the salt dissolve in water?

• Yes

• No

Does the sand dissolve in water?

• Yes

• No

Does the talcum powder dissolve in water?

• Yes

• No

If we put water into freezer, it changes from liquid to ....................

• gas

• solid

• liquid