Science STAAR 2022

6 CO₂ + 6 H₂O → C₆H₁₂O₆ + 6 O₂

How many oxygen atoms in total are present in the reaction?

• 10

• 21

• 12

• 18

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

An atom of an element has 36 protons, 36 electrons, and a mass number of 84? How many neutrons?

• 36

• 72

• 48

• 8

Tags

NGSS.MS-PS1-1

What types of particles are found in the cloud surrounding the atom's nucleus?

• positively and negatively charged particles

• negatively charged particles only

• neutral and positively charged particles

• positively charged particles only

What is the mass number of a potassium (K) atom that has 20 neutrons?

• 18

• 19

• 20

• 39

Tags

NGSS.MS-PS1-1

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

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 amount of matter in an object?

• Weight

• Density

• Mass

• Volume

What is the process by which plants release water vapor into the air through their leaves?

• Condensation

• Transpiration

• Evaporation

• Precipitation

Tags

NGSS.MS-ESS2-4

Which of the following is NOT a renewable resource?

• Solar energy

• Wind energy

• Coal

• Hydroelectric power

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