Mid-term Science

What type of organisms are algae?

• Autotrophs

• Saprophytes

• Parasites

• None of the above

What are Lichens?

• Algae and fungi

• Heterotrophs and Autotrophs

• Algae and Cuscuta

• Leguminous plants and Rhizobium

What is used by dentists too see enlarged image?

• Concave mirror
• Convex Mirror

• Concave Lens

• Convex Lens

What are multiple rays joining at a point called?

• Divergent Beam

• Convergent Beam

• Parallel Beam

Convex lens are used in rear-view mirrors.

• True

• False

What is Baking Soda?

• Sodium Hydrogen Carbonate

• Hydragyrum

• Wolfram

• Kalium

What is KALIUM?

• Calcium

• Potassium

• Tungsten

• Sodium

What is in the image?

• Sodium Fluoride

• Calcium Carbonate

• Sodium Carbonate

• Sodium Chloride

Choose the solids.

• Helium

• Lithium

• Zinc

• Chlorine

What is the formula of distance?

• Speed/Time

• Time/Speed

• Speed x Time

• None of the above