Common Assessment #2 Test Review – Pay close attention to this review. – Study this power point!!! – Study the questions you got wrong during the review.

All matter has ____, even your text book sitting still. Energy Data Applied science efficiency

Gravity affects an object’s Mass Weight Volume Density

Which of the following is an example of a physical change? Cutting a piece of paper in half A cake baking in an oven The reaction of baking soda to vinegar An ice cube melting

During physical changes, matter always retains its Size Identity State texture

Characteristic properties of an object Change if the sample you’re observing is larger Change if the sample you’re observing is smaller Stay the same regardless of the samples size

Chemical changes can Be undone using physical means Create new substances with new properties Never be undone None of the above

Color, odor, mass, and volume are _____ of an object. Chemical properties Physical properties Stationary properties Gravitational properties

Examples of chemical properties are flammability reactivity Color Phase changes/state changes Change of odor

Making aluminum foil demonstrates the physical change called A chemical property malleability ductility conductivity

Which of the following best describes particles of a liquid? The particles are far apart and moving fast The particles are close together but moving past each other. The particles are far apart and moving slowly. The particles are closely packed and vibrate in place.

Boiling points and freezing points are examples of Chemical properties Physical properties Energy matter

Which of the following describes what happens as the temperature of gas in a balloon increases? The speed of the particles decreases. The volume of the gas increases and the speed of the particles increases. The volume decreases. The pressure decreases.

Dew collects on the grass in the morning. This is an example of Condensation Evaporation Sublimation melting

Copper being draw into a wire is a Physical change Chemical change Chemical reaction solution

The particle of water that evaporates from an open container have _______ than the particles that remain More speed Greater order Higher energy More speed and higher energy

In a gaseous state, particles Move independently of one another Move fast enough to break away completely from one another Have empty space between them All of the above

______ do NOT change shape in different containers Solids Liquids Gases Plasmas

You can cause water to change state by removing or adding Matter Particles Energy Surface tension

Energy is released by a substance during An exothermic change An endothermic change Freezing condensation

Volume is the amount of space something takes up. the amount of matter something has. the amount of mass something has. the amount of mass in a given area something has.

A magnet could be used to separate nonmagnetic matter from Sand Salt Rust Iron

During which change of state do molecules become more ordered? Freezing Condensation Sublimation melting

Energy is absorbed by a substance during An exothermic change An endothermic change Freezing condensation

Which state of matter is highly compressible (can be compressed to fit into a smaller container)? Solid Liquid Gas water

The line graph shows the height of trees grown in enriched soil and plain soil. Based on this information, what should happen in year 5 to plant B? Years of Growth H E I G H T (m) Plant A plain soil Plant B rich soil

How many millimeters are in 1 meter? ,000 10,000 Only King Henry knows and he died unexpectedly drinking chocolate milk

When a liquid changes to a solid, regardless of temperature this is called sublimation freezing evaporation melting

Composed of two or more elements that are chemically combined describes An element A compound Water Carbon dioxide

Which of these best shows particles in a mixture?

Which of these best shows particles in a compound?

Which of these best shows particles in an element?

This experiment was set up to test the hypothesis that plants grow faster in green light. What would improve this experiment?

Seeds were placed in dish with a moist paper towel to see which one would germinate the fastest. What is the independent variable in this experiment? 10 degrees Celsius 15 degrees Celsius 20 degrees Celsius

Which of the following are compounds? Carbon Dioxide CO 2 Gold (Au) Carbon (C) Carbon Monoxide (CO) Helium (He) Salt (NaCl)

Which of the following are elements? Neon (Ne) Chlorine (Cl) Carbon Monoxide (CO) Helium (He) Salt (NaCl)

Which of the following are homogeneous mixtures?

A scientist predicts that a compound can be chemically changed back into two elements by heating the compound at a specific temperature. When the scientist repeats the experiment to verify his prediction, the only thing that should change is the --- The location the experiment is conducted The temperature The time the experiment is conducted The burner creating the heat

Which of these substances are heterogeneous mixtures? Trail mix Salt water Milk Chex mix (peanuts, chex cereal + dried fruits) Lucky Charms cereal (oats & marshmallows)

Between points 4 and 5, energy is being used to change water from a - Solid to a liquid Liquid to a gas … … … TemperatureoCTemperatureoC Heat (Kcal)

At what temperature does a solid become a liquid (water)? -20 o C - 0 o C -100 o C o C … … … TemperatureoCTemperatureoC Heat (Kcal)