Solomon Science

What part of this system is MOST essential for the water cycle to function?

• energy from the sun

• location of rivers

• human use of water

• animal use of water

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Most of the mass in any atom is----

• found in the cloud surrounding the nucleus

• contained in the atom's nuetrons

• contained in the nucleus

• in neither nucleus nor the cloud surrounding the nucleus

Based on the periodic table which element is more reactive?

• Magnesium (Mg)

• Sodium (Na)

• Barium (Ba)

• Neon (Ne)

A balloon attached to a model car set on a smooth surface moves as the balloon deflates. Newton's 3rd law of motion is ---

• air to rush from the balloon's opening

• air to expand the ballloon's volume

• front of the car to tip backward

• the wheels of the car to spin clockwise

Tags

NGSS.MS-PS2-1

Two substances are mixed in a lab. A chemical reaction occured in the beaker. Which is not evidence that a chemical reaction occured?

• a liquid formed at the bottom of the beaker

• the temperature of the mixture dropped dramatically

• a gas with a strong smell was released from the mixture

• the powdery substance dissolved in the water

Tags

NGSS.MS-PS1-2

An element's periodic table identity is defined by its number of --

• protons

• neutrons

• isotopes

• electrons

Destiny is looking around her house, classifying changes she notices as physical or chemical changes? What is the chemical change?

• Destiny's father burns an English muffin

• Destiny mixes chocolate syrup into a glass of milk

• Destiny's mother chops celery and onion into small pieces

• Destiny's melts butter in the microwave

Tags

NGSS.MS-PS1-2

Zinc and Hydrochloric acid are mixed. The zinc turns black and hydrogen gas was released. What kind of change took place and why?

• physical change, because the hydrochloric acid evaporated

• Chemical change, because the zinc melted

• Chemical change, because at least one new substance was created

• Physical change, because the zinc combined with the chorine in the acid

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A girl stands on a scale with force of 42 newtons, in order for the forces to balance. What force does the scale have to push back up against her feet?

• 42 newtons

• 24 Newtons

• 84 Newtons

• 128 newtons

A student named Jordan constructs bohr model of an atom. He has protons and electrons in the nucleus and neutrons on the outside orbiting the nucleus. What change would you make to fix his model?

• swap the labels for the electrons and nucleus

• swap the labels for the electron and neutron

• swap the labels for the proton and neutron

• swap the labels for the proton and nucleus

Tags

NGSS.MS-PS1-1