RETEACH Chemistry Experience 1, 2 and 6/7grade

Which of the following is a nonmetal on the periodic table?

• Sodium (Na)

• Oxygen (O)

• Iron (Fe)

• Magnesium (Mg)

What is the chemical symbol for gold?

• Au

• Ag

• Ga

• Gd

Which of the following is evidence of a chemical change?

• Melting of ice

• Production of a gas

• Breaking a glass

• Dissolving sugar in water

Tags

NGSS.MS-PS1-2

Which of the following is a physical change?

• Burning wood

• Rusting of iron

• Boiling water

• Baking a cake

• 1

• 2

• 3

• 0

Tags

NGSS.MS-PS1-1

Which of the following best describes a homogeneous mixture?

• Salad

• Saltwater

• Sand and iron filings

• Oil and water

Which element is a metalloid?

• Silicon (Si)

• Oxygen (O)

• Copper (Cu)

• Neon (Ne)

Which of the following is a compound?

• NaCl

• Fe

• H

Tags

NGSS.MS-PS1-1

• 1 carbon, 2 oxygen

• 2 carbon, 1 oxygen

• 1 carbon, 1 oxygen

• 2 carbon, 2 oxygen

Tags

NGSS.MS-PS1-1