Science Practice Assessment

Most stars are made of which elements?

• Hydrogen only

• Hydrogen and Lithium

• Hydrogen and Sodium

• Hydrogen and Helium

Tags

NGSS.HS-ESS1-3

How many atoms are in the neurotransmitter serotonin? The formula for serotonin is C₁₀H₁₂N₂O

• 10

• 20

• 25

• 23

Tags

NGSS.MS-PS1-1

What type of air pressure is present?

• High 

• Low

Tags

NGSS.MS-ESS2-5

What type of air pressure is present?

• High 

• Low

Tags

NGSS.MS-ESS2-5

An _______________ is made up of one or more of the SAME TYPE of atom.

• atom

• element

• mixture

• compound

___________ are the smallest unit of an element that maintains the properties of that element.

• Atoms

• Elements

• Compounds

• Mixtures

Tags

NGSS.MS-PS1-1

All known element are arranged in a table called the ____________________________________.

• Elements Table

• Table of Substances

• Science Table

• Periodic Table of Elements

Baking soda is the common name for sodium bicarbonate, or NaHCO3. What elements make up this compound? Check all answers that apply.

• Sodium (Na)

• Nitrogen (N)

• Hydrogen (H)

• Carbon (C)

• Oxygen (O)

Tags

NGSS.MS-PS1-1

Which is the definition of mass?

• how much space an object takes up

• how much matter an object contains

• how much gravitational force is applied on an object

Tags

NGSS.MS-PS2-4

Let's practice! The initial volume of water in the graduated cylinder reads 50 mL. After dropping in the object, the water level went up to 60 mL. What is the volume of the object?

• 8 mL

• 10 mL

• 60 mL

• 5 mL