Astra - Science and Nature

what is the powerhouse of the cell

• nucleus

• mitochondria

• cytoplasm

• ribosomes

When exposed to lower air pressure, the boiling point of water

• Decreases
• Increases
• Remains the same
• All of the above

The type of reaction that releases energy as heat is called

• endothermic

• exothermic

• respiration

• photosynthesis

on average, how many teeth do adult humans have?

• 28

• 36

• 26

• 32

Lightning is hotter than

• the earth's core

• Mike Wazowski

• The Sun

• all of the above

How many elements on the periodic table

• 42

• 118

• 109

• 136

How many chambers are in a frog's heart

• 2

• 4

• 3

• 6

What is a geiger counter used to measure

• Radiation

• Earthquakes

• Tsunamis

• windspeed

This part of the brain deals with hearing and language

• Frontal lobal

• temporal lobe

• parietal lobe

• cerebellum

What type of person examines dead bodies

• Coroner

• pathologist

• psychopaths

• the devil