NC Science

Which is the best estimate of the melting point of Rubidium (Rb)?

• 25* C

• 40* C

• 75* C

• 184* C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which is classified as an element?

• carbon dioxide

• iron

• vinegar

• water

Chlorine has 7 valence electrons. With what group of elements will chlorine most readily bond?

• group 1

• group 2

• group 16

• group 18

Which is the best example of a chemical change?

• butter melting

• egg cooking

• paper tearing

• water evaporating

Tags

NGSS.MS-PS1-2

Which chemical equation best represents the Law of Conservation of Mass?

Tags

NGSS.MS-PS1-5

Which is a way the agricultural biotechnology industry could have a positive impact on the environment?

• by producing crops that are virus resistant

• by making robots to replace large farm machines

• by reducing the need for countries to import food

• by increasing the use of wind farms that produce electricity

Tags

NGSS.HS-ESS3-4

NGSS.HS-ETS1-3

NGSS.HS-LS2-7

Which is an application of genetic engineering?

• destroying all bacteria

• creating synthetic insulin

• producing cells from nonliving material

• preventing weeds from spreading to farmland

Tags

NGSS.MS-LS4-5

Which organisms are used to manufacture human insulin?

• algae

• amoebas

• bacteria

• protozoans

Which is an example of scientists using biotechnology to benefit aquaculture?

• creating pest-resistant crops

• making new forms of human antibiotics

• developing a rot-resistant gene for trees

• producing a faster-growing salmon species

Tags

NGSS.MS-LS3-1

What type of science allows us to alter the DNA of a corn plant so that it will contain more protein?

• biology

• biotechnology

• geology

• physiology

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4