Midterm 2020

7.82 x 10^-6 is an example of scientific notation. The exponent of -6 tells you your number will be very ________.

• Large
• Small
• Basic

Change from standard form to scientific notation: 12,000,000

• 12.0  x  10⁷
• 0.12  x  10⁷
• 1.2  x  10⁶
• 1.2  x  10⁷

Change from standard form to scientific notation:  0.000398

• 39.8  x  10^-5
• 3.98  x  10^-5
• 3.98  x  10^-4
• 39.8  x  10^-6

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL
• 7 g/cm³
• 28 g/cm³
• 1/7 g/cm³

Tags

CCSS.7.RP.A.3

What is the formula for density?

• density = mass x volume
• density = mass / volume
• density = mass + volume
• density = mass - volume

A mixture that is NOT evenly distributed is called ....

• Compounded
• Homogenous
• Heterogenous
• Salty

Which is NOT a chemical change?

• Leaves changing colors in the fall
• Iron rusting
• Digesting Lunch
• Ice Melting

Tags

NGSS.MS-PS1-2

This picture represents: 

• Element
• Compound
• Mixture of Elements
• Mixture of Compounds

Tags

NGSS.MS-PS1-1

This picture represents: 

• Element
• Compound
• Mixture of Elements
• Mixture of Compounds

Tags

NGSS.MS-PS1-1

Which of the following is an element?

• Sugar
• Salt
• Water
• Oxygen