Act Science Prep

Suppose a new crop rotation for Field B included legumes and other deep-rooted and high-residue crops. The SOM of this field will most likely change in which of the following ways? The SOM will:

• decrease, because soil quality is likely to increase.

• decrease, because soil quality is likely to decrease.

• increase, because soil quality is likely to increase.

• increase, because soil quality is likely to decrease.

• Suppose a new crop rotation for Field B included legumes and other deep-rooted and high-residue crops. The SOM of this field will most likely change in which of the following ways? The SOM will:

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-3

Which set of data best supports the claim that Field A has lower soil quality than Field B?

• Figure 1

• Figure 2

• Table 1

• Table 2

• Which set of data best supports the claim that Field A has lower soil quality than Field B?

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

• Field A in Year 1

• Field A in Year 3

• Field B in Year 4

• Field B in Year 5

• If 8 tons or fewer in crop yields were considered a failed harvest, in which year and in which field would there have been a failed harvest?

Tags

NGSS.MS-LS2-1

NGSS.MS-LS1-5

• less than 0.56 g

• between 0.59 g and 0.72 g.

• between 1.23 g and 1.84 g.

• greater than 1.84 g.

• Table 1, if the amount of Fe₂O₃ produced on Day 9 had been measured for the salt solution, it would most likely have been:

Tags

NGSS.MS-PS1-2

Which day of the week had the lowest temperature?

• Monday

• Thursday

• Tuesday

• Wednesday

Based on the information in Table 1 and Figure 1, what is the most likely explanation for the relatively small change in net productivity between 64 successional years and 256 successional years?

• The tree successional period is relatively stable in terms of productivity.

• Shrubs are continuing to be dominant.

• Herbs are continuing to be dominant

• The birds prevent net productivity from increasing,

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What is the most likely hypothesis explaining succession, based on the data in Table 1 and Figure 1?

• As time goes on, a plot of land subjected to slash and burn agriculture produces less and less biomass.

• Smaller, less productive plants become dominant once the ecosystem created by larger, more productive plants can support them.

• Larger, more productive plants become dominant once the ecosystem created by smaller, less productive plants can support them.

• All of the above.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-3

NGSS.MS-LS2-2

Most of the questions on the Science Section of the ACT are from information stated directly on the page.

• True

• False

You should use your outside knowledge of Science to answer most of the questions in the Science section of the ACT.

• True

• False

Which of the following means a unit is multiplied by 1000?

• Deci-

• Centi-

• Milli-

• Kilo-