Science EOG Review

Which elements are most likely to react in the same manner in a chemical reaction?

• elements in the same group (family)

• elements in the same period

• elements with similar atomic masses

• elements are not grouped together

Which allows scientists to investigate what Earth’s climate was like over the past 740,000 years?

• volcanic deposits

• fossils

• faults

• ice cores

Which best explains why mammals became dominant after the mass extinction of dinosaurs?

• They had traits that allowed them to adapt and change to the environment.

• They were bigger than dinosaurs.

• They were able to hibernate for a long time.

• They ate different foods than dinosaurs.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Which is a compound?

• hydrogen

• air

• sugar

• calcium

Tags

NGSS.MS-PS1-1

Two different liquids are poured together. Bubbles and a mist forms. A few minutes later, the solution is weighed, and the weight is less than before the liquids were mixed. Why?

• Atoms were destroyed in the mist.

• Atoms became lighter when they turned into a gas.

• Some atoms escaped into the air.

• Some of the atoms became brand new substances that weigh less.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The decomposition of carbonic acid changes into water and carbon dioxide. Which statement is true?

• The product is greater than the reactant

• The product is less than the reactant

• The product is equal to the reactant

• The product destroyed the reactants.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is classified as an element?

• iron

• Salt

• water

• air

Which best describes the seqence of the elements in Period 5 of the Periodic Table?

• Highly reacive gases, relatively nonreactive metals, reactive gases, nonreactive metals

• highly reacive metals, relatively nonreactive metals, metalloids, reactive nonmetals, nonreactive gases

• nonreactive gases, metalloids nonreactive metals, highly reactive metals, highly reactive gases

• nonreactive gases, nonreactive metals, highly reactive metals, reactive gases

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

• Group 1

• Group 2

• Group3

• Group 7

Which is the best example of a chemical change?

• balloon popping

• crumpling up paper

• water evaporating

• a cake baking

Tags

NGSS.MS-PS1-2