Unit 4 Test SNC1L/2L

Name

Chemical reactions can be both useful AND dangerous.

• True

• False

Mrs. Anderson likes to say this element's name

• Au
• Ni
• Mo
• C

Which chemical reaction can be both useful and dangerous?

• 
• 
• 
• all of the above

Chemical reactions can happen

• when chemicals are being made

• when they are used

• after they are thrown away

• all of the above

Phosphates

• 
• cause algae to grow in ponds and lakes
• can kill other organisms in the lake
• all of the above

Opinions

• are not right or wrong
• matter when making a choice
• affect your decisions
• all of the above

Expert testimony is

• the story of an event related to the topic
• information given by someone with a lot of knowledge or training about the topic
• a statement or number considered true and supported by data
• the reason something happens, based on science

An example is

• the story of an event related to the topic
• information given by someone with a lot of knowledge or training about the topic
• a statement or number considered true and supported by data
• the reason something happens, based on science

A fact or statistic is

• the story of an event related to the topic
• information given by someone with a lot of knowledge or training about the topic
• a statement or number considered true and supported by data
• the reason something happens, based on science