Scientific Investigation

Which of the following shows 0.0098 in scientific notation?

• 9.8x10³

• 9.8x10^-3

• 0.98x10²

• 9.8x10^-2

Which of the following is equivalent to 1.2 meters? Choose all that apply.

• 120 cm

• 0.12 km

• 1,200 mm

Experiments often use what as a standard for comparison?

A student believes that the more you heat a balloon, the more it will expand. What is the independent variable?

• the size of the balloon

• the amount of heat added

• the brand of balloons used

• a balloon at room temperature

A student believes that the more you heat a balloon, the more it will expand. What is likely the control in the experiment?

• the size of the balloon

• the amount of heat added to the balloon

• the brand of balloons used

• a balloon kept at room temperature

Solve the following: 4.2x10³ ÷ 1.8x10²

• 2.3x10¹

• 2.3x10⁵

What is the density of an object with a mass of 0.8 g and a volume of 1.2 mL?

Round your answer to one decimal place. Do not enter the units.

According to the graph what is the density of aluminum?

Do not include units in your response.