Matter and Energy

A bike rusting is an example of a __________

• Chemical Change

• Physical change

• compound

• Conductivity

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

You find something that is brittle and dull. What type of element is it likely to be?

• a metal

• a nonmetal

• a metalloid

• heavy metal

Iron is a good conductor, malleable and magnetic. What type of element is Iron? 

• Metal
• Nonmetal
• Metalloid
• Pretty

Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon? 

• Metal
• Nonmetal
• Metalloid
• Pretty

How would this element be classified?

• Metal
• Nonmetal
• Metalloid
• Metamorphic

Tags

NGSS.MS-PS1-1

The chemical formula for glucose is C₆H₁₂O_6. How many hydrogen atoms are in glucose?

• 3

• 6

• 12

• 24

How many elements are in: 4 NaCl (salt)

• 1

• 2

• 4

• 8

Tags

NGSS.MS-PS1-1

A student drew atomic models of four elements. Based on these drawings, which element is the least reactive?

• Neon, because it has two energy levels with eight electrons in the second level

• Chlorine, because it has three energy levels with seven electrons in the third level

• Gallium, because it has four energy levels with three electrons in the fourth level

• Tin, because it has five energy levels with four electrons in the fifth level

Tags

NGSS.MS-PS1-1

An atom has 5 protons and 7 neutrons. What is the mass number of the atom?

• 5
• 7
• 2
• 12

A certain atom has 26 protons, 26 electrons, and 30 neutrons. Its mass number is ____.

• 26
• 30
• 52
• 56

Tags

NGSS.MS-PS1-1