All energy on earth begins

• with the heat produced by pressure inside the earth
• photosynthesis by producers
• with the sun
• with the magma inside the earth

Tags

NGSS.MS-ESS2-4

The transmission of energy by two objects touching is called

• conduction
• convection
• contraction
• radiation

Rising warm air currents is an example of?

• Radiation
• Conduction
• Convection

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

Higher temperature means faster moving molecules

• True
• False

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which statement is true?

• The quicker a molecule moves, the colder it is.
• The slower a molecule moves, the warmer it is.
• The quicker a molecule moves, the warmer it is
• The movement on molecule don�t affect its temperature

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

Which of the following is NOT a conductor?

• oven mitt
• curling iron
• iron skillet
• copper pipe

Which best describes heat transfer by radiation?

• a slice of bacon frying in a pan
• a pot on a stove boiling water
• a camp fire warming hands
• a hot air balloon

The temperature of boiling water is 

• 100^o F and 32^0C.
• 100^o C and 32⁰F
• 100^o C and 212⁰F.

Which example below is an example of radiation?

• Standing on a hot metal bridge
• The attic is warmer than the basement
• The Sun heating the Earth
• Touching hot sand with your feet

Which is more dense?

• Hot Liquid
• Cold Liquid