Science Exam Practice Grade 8

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Carbohydrates are organic compound that contains the elements carbon, hydrogen and ____

• Nitrogen
• Oxygen
• Phosphorus
• Sulfur

____ is done when a force is used to move an object through a distance in the direction of the force.

• Power
• Velocity
• Energy
• Work

The building blocks of an organism which can function on their own are called ____

• Tissues
• Organs
• Cells
• Organ systems

Dietary fiber is an example of a ____ carbohydrate.

• Complex
• Simple
• Soluble
• Insoluble

The S.I. unit of work is ____

• Joule
• Newton
• Watt
• Meter

A typical cell is made up of cell membrane, a nucleus and ____

• Ribosomes
• Mitochondria
• Cytoplasm
• Lysosomes

____ such as glucose, fructose, and galactose are examples of simple carbohydrates

• Disaccharides
• Polysaccharides
• Monosaccharides
• Proteins

Coal ____, nuclear energy and natural gas are the types of fossil fuels currently in use, they are nonrenewable energy sources.

• Methane
• Gasoline
• Biomass
• Oil

The mitochondrion is a structure in the cytoplasm that produces ____ for the cell.

• Protein
• Oxygen
• Energy (ATP)
• Carbohydrates