Access Speaking Science

What is the atomic number of oxygen?

• 5

• Sandwich

• 8

• 17

Tags

NGSS.MS-PS1-1

Enhancing water supplies by building a large dam to store precipitation supplies would be:

• enhancing by redistribution

• enhancing by desalinisation

• enhancing by reservoirs

• enhancing by artificial recharge of aquifers

• enhancing by rainwater harvesting

Tags

NGSS.MS-ESS2-4

What is the primary function of the mitochondria in eukaryotic cells?

• Energy production

• Protein synthesis

• Photosynthesis

• Cell division

Tags

NGSS.MS-LS1-2

Which of the following elements is a noble gas?

• Oxygen

• Nitrogen

• Helium

• Carbon

What is the chemical formula for table salt?

Which law explains the relationship between the pressure and volume of a gas at constant temperature?

• Boyle's Law

• Charles's Law

• Avogadro's Law

• Newton's Law

What is the acceleration due to gravity on Earth?

Which part of the plant is primarily responsible for photosynthesis?

• Root

• Stem

• Leaf

• Flower

Tags

NGSS.MS-LS1-6

What is the pH level of pure water at 25°C?

• 0

• 7

• 14

• 5

Which of the following is an example of a chemical change?

• Melting ice

• Boiling water

• Burning wood

• Breaking glass

Tags

NGSS.MS-PS1-2