Eighth Grade Science STAAR

If the mass number of this chlorine atom is 36, how many neutrons does it have?

• 17

• 18

• 19

• can't be determined

Tags

NGSS.MS-PS1-1

The vertical (up and down) columns in the Periodic Table are called

• groups

• towers

• periods

• atomic numbers

The horizontal (side to side) rows in the Periodic Table are called

• groups

• families

• periods

• atomic numbers

The substances listed on the right side of a chemical equation are the

• Yields

• Reactants

• Products

• Precipitates

What is the primary function of the chloroplasts in plant cells?

• To break down sugar molecules to release energy

• To store water and nutrients

• To capture light energy and convert it into chemical energy

• To control the entry and exit of substances in and out of the cell

Tags

NGSS.MS-LS1-6

What is the term for the movement of particles from an area of higher concentration to an area of lower concentration?

• Osmosis

• Diffusion

• Active transport

• Endocytosis

Which of the following is a chemical change?

• Dissolving salt in water

• Boiling water

• Burning wood

• Melting ice

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the term for the amount of matter in an object?

• Weight

• Density

• Mass

• Volume

What type of symbiotic relationship benefits one organism without harming the other?

• Mutualism

• Commensalism

• Parasitism

• Predation

Which of the following is NOT a renewable resource?

• Solar energy

• Wind energy

• Coal

• Hydroelectric power