STAAR Science 8th Grade Review

Front

What is a property of metals found in section B of the periodic table?

Back

Metals in section B, such as transition metals, conduct heat.

Front

What season occurs in the Northern Hemisphere during Position 3?

Back

Summer.

Front

What type of stars are red stars?

Back

Red stars are the coolest stars.

Front

What indicates that a new substance has formed when two clear liquids are mixed?

Back

A yellow solid forms and settles to the bottom of the beaker.

Front

What is the position of Earth when it is summer in Argentina?

Back

Earth is tilted towards the sun in the Southern Hemisphere.

Front

Define transition metals.

Back

Transition metals are elements found in groups 3-12 of the periodic table, known for their ability to conduct heat and electricity.

Front

What is the significance of the Earth's tilt in relation to seasons?

Back

The tilt of the Earth on its axis causes different seasons as it orbits the sun.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

What is the definition of a chemical reaction?

Back

A chemical reaction is a process that leads to the transformation of one set of chemical substances to another.

Front

What are the characteristics of metals?

Back

Metals are typically malleable, ductile, good conductors of heat and electricity, and have a shiny appearance.