Iac Science Bee

What is the atomic number of oxygen?

• 5

• 17

• Sandwich

• 8

What is the molecular structure of Table salt?

• Sandwich

• Molecular who?

• NaCI

• H2O

Tags

NGSS.MS-PS1-1

What Female Nobel prize winner Conducted research on radioactivity?

• Sandwich

• Marie curie

• Tierra Guinn

• Issac Newton

Tags

NGSS.HS-PS1-8

Energy= ___ to the speed of light squared

• Gravity

• Sandwich

• Mass

• Lighting

who was Dimitri Ivanovich Mendeleev?

• Periodic Table inventor

• Sandwich

• An Astronomer

• A singer

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

How Long does it take for light to get from the sun to the Earth?

• 150 Million Years

• 8 minutes

• Sandwich

• 10 seconds

Tags

NGSS.MS-ESS1-1

Which of the following statements best describes a homogeneous solution?

• It is usually liquid.

• It can be dilute or concentrated.

• It contains a solute and solvent.

• Its components are distributed evenly in the solution.

What happens when air is heated?

• it expands, then rises

• it moves toward a lower elevation

• it spreads in all directions

• it stays in place

Tags

NGSS.MS-ESS2-5

NGSS.MS-PS1-4

Which of these statements distinguishes pure substance from mixture?

• It can be separated by physical means.

• It consists of two or more kinds of matter.

• It has a constant boiling and melting temperatures.

• It has no specific solubility and density.

Why it is necessary for the specimen to be observed under the microscope must be thin?

• so that the image will be clearer

• so that light could pass through the specimen

• so that the image would be bigger

• so that a high magnification objective can be used