2019 Grade 8 Intermediate-Level Science Test Questions 31-45 Question Preview (ID: 59896)

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Which grid is correctly designed to show these data in a line graph?

a) 1

b) 2

c) 3

d) 4

What is the approximate volume of the rock suspended in the graduated cylinder?

a) 50 mL

b) 100 mL

c) 250 mL

d) 300 mL

If the pattern of growth continues, how many bacteria will be in sample B when six hours have elapsed?

a) 32

b) 64

c) 1024

d) 2048

The Calories on a food label indicate the amount of energy the food contains in one serving. Which form of energy is contained in food?

a) chemical

b) mechanical

c) electrical

d) light

Nutritious food choices have less than 30% of their Calories from fat per serving. The equation is given below. % Calories from Fat = (Calories from Fat/Calories) x 100. What is the % of Calories from fat in one serving of this macaroni and cheese?

a) 14%

b) 23%

c) 36%

d) 44%

The process of boiling is considered to be a

a) chemical change, because a new substance is formed

b) chemical change, because a new substance is not formed

c) physical change, because a new substance is formed

d) physical change, because a new substance is not formed

The ramp would be classified as which type of simple machine?

a) a lever

b) a pulley

c) a wheel and axle

d) an inclined plane

Which two locations on the magnet would have the greatest attractive forces?

a) A and F

b) B and E

c) C and D

d) D and F

The Law of Conservation of Energy states that energy cannot be created or destroyed, but energy can change

a) its total mass

b) its total volume

c) from one form to another

d) from one state of matter to another

The plastic straws were placed under the wooden block to

a) decrease the mass of the block

b) decrease the amount of friction

c) increase the surface area of the ramp

d) increase the gravitational attraction of the block

Which form of energy is the original source of power for this car?

a) electrical

b) mechanical

c) sound

d) light

One characteristic that salt water and sugar-water have in common is, at room temperature, they are

a) gases

b) solids

c) mixtures

d) elements

What is the major source of energy for the production of electricity in this facility?

a) nuclear power

b) prevailing winds

c) moving water

d) burning coal

Balloon A would be most attracted to which balloon?

a) 1

b) 2

c) 3

d) 4

Which process is represented by the arrows in the diagram?

a) condensation

b) conduction

c) convection

d) radiation

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