Science Quiz Bee Finals (Grade 7)

There ______ elements in the periodic table.

•  106

• 113

•  115

• 118

Which planet is closest to the sun?

• Earth

• Mercury

• Saturn

• Jupiter

What simple machine can be used to split things apart and also it can hold open a door?

• Lever

• Pulley

• Wedge

• Screw

Which of these organs is NOT directly involved with the digestive system?

• Lungs

• Liver

• Stomach

• Intestines

Which of the following method of separating mixtures will you use for a mixture that has different boiling points?

• Condensation

• Decantation

• Distillation

• Desalination

Which of the following is a pure substance?

• 14K gold

• 18K gold

• 24K gold

• 20K gold

What direction is the pull of gravity?

• down

• left

• right

• up

Day and night is caused by the _____________ of earth on its axis.

• orbit

• rotation

• revolution

• space

The symbol for gold comes from the Latin word Aurum. How can you write the symbol for gold correctly?

• AU

• Au

• au

• aU

Which of the following statements is correct?

• Pluto was once classified as a dwarf planet, but is now classified as a main planet.             

• Pluto has always been considered a planet

• Pluto was never classified as a planet     

• Pluto was once considered a planet, but no longer is