Leap

_____________ air is more dense and tends to sink

• cold

• warm

• moist

• dry

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

What symbol is this?

• warm front

• cold front

• stationary front

• occluded front

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

When a cold front is approaching, what happens?

• warm air is pushing under cold air causing humid weather and lower temperatures

• warm air is pushing under cold air causing humid weather and higher temperatures

• warm air rises, cools, and causes rain and thunderstorms

• cold air is pushed over warm air causing rain and thunderstorms

Tags

NGSS.MS-ESS2-5

What direction is the warm front moving on the map? 

• North

• South

• East

• West

Tags

NGSS.MS-ESS2-5

What direction is the cold front moving on the map? 

• Southwest

• Northwest

• Southeast

• Northeast

Tags

NGSS.MS-ESS2-5

Which of the following models best demonstrates a balanced chemical equation?

• F

• G

• H

• J

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is burning wood a chemical or physical change?

• chemical

• physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is an example of a chemical reaction?

• paper cut into small pieces

• chocolate melting in a pan

• flour and sugar mixed in a bowl

• cookies baking in an oven

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following alleles is homozygous (purebred) recessive?

• Tt

• tt

• TT

• t

Which of the following genotypes is homozygous dominant?

• A

• Aa

• AA

• aa