SAT 10 Grade 8 Science Practice Test_3

Front

Which layer of the Earth is composed mainly of solid iron and nickel?

Back

Inner core

Front

What is the main function of red blood cells?

Back

To carry oxygen

Front

Photosynthesis occurs in which part of the plant cell?

Back

Chloroplast

Front

The process of water evaporating from plant leaves is called:

Back

Transpiration

Front

What is the primary cause of earthquakes?

Back

Movement of tectonic plates

Front

The basic unit of all living organisms is the: Tissue, Organ, Cell, Atom

Back

Cell

Front

Role of chlorophyll?

Back

Absorbs light energy for photosynthesis

Front

What gas is released during photosynthesis?

Back

Oxygen

Front

Which organ system removes waste products from the body?

Back

Excretory system

Front

Which of the following best describes an igneous rock?

• Formed by cooling and solidification of lava or magma
• Formed by weathering and erosion
• Formed by compression of sediment
• Formed by chemical precipitation

Back

Formed by cooling and solidification of lava or magma