Science Gr2_Ms Lhet

Which of the following is a characteristic of metallic minerals?

• Dull or glassy luster

• Poor conductor of electricity

• Shiny or metallic luster

• Light and soft

What type of mineral is gold?

• Non-metallic

• Metallic

• Energy mineral

• Oxide

What is talc commonly used for?

• Making baby powder

• Producing electricity

• Manufacturing steel

• Conducting electricity

What is the most common type of mineral, made of silicon and oxygen?

• Carbonates

• Sulfides

• Silicates

• Oxides

Which organ is the main site of gas exchange in the body?

• Stomach

• Heart

• Lungs

• Brain

Which muscle helps in breathing?

• Heart

• Diaphragm

• Liver

• Stomach

What gas do humans inhale to produce energy?

• Carbon dioxide

• Oxygen

• Nitrogen

• Helium

Which type of cloud looks like cotton balls and usually means good weather?

• Cirrus

• Cumulus

• Stratus

• Nimbus

What does a nimbus cloud bring?

• Clear skies

• Rain or storms

• Fog

• Sunshine

What do cirrus clouds look like?

• Thick and dark

• Wispy and feathery

• Flat and gray

• Puffy and white