Quiz about Science Category

Question 1

The freezing point of water is ________.

Accepted Answer

0oC

Answer

32oC

Answer

100oF

Answer

25oF

Question 2

A teacher wears protective gloves to lift a metal pan filled with boiling water from a hot plate. Why are the protective gloves necessary?

Accepted Answer

The metal pan conducts thermal energy

Answer

The metal pan creates thermal energy

Answer

The metal pan insulates thermal energy

Answer

The metal pan reduces thermal energy

Question 3

What physical property of matter can be measured using the triple beam balance?

Accepted Answer

mass

Answer

length

Answer

height

Answer

volume

Question 4

What describes the ability of a solid to dissolve in water?

Accepted Answer

solubility

Answer

melt

Answer

dissapear

Answer

evaporate

Question 5

When a powdered drink mix was added to water, the liquid turned orange. A student decided the taste was too strong, so he poured out half of the liquid and added more water. Which of the following most likely occurred when more water was added?

Accepted Answer

The orange color became lighter.

Answer

The physical state changed.

Answer

The liquid had a sweeter taste.

Answer

None of the above

Question 6

A student observes ice forming on the edge of a school building. At what temperature did the water outside the school building most likely begin to change to ice?

Accepted Answer

0 C.

Answer

100 C.

Answer

32 C.

Answer

25 C.

Question 7

Which liquid is the most dense?

Accepted Answer

syrup

Answer

oil

Answer

water

Answer

plastic bottle

Question 8

What would be the best title for this data table?

Accepted Answer

Tools for Measuring Matter

Answer

Tools for Measuring Length

Answer

Tools for Measuring Volume

Answer

Tools for Measuring Mass

Question 9

What do magnets stick to?

Accepted Answer

iron

Answer

copper

Answer

wood

Answer

plastic

Question 10

Which of the following is a good conductor of electricity?

Accepted Answer

copper penny

Answer

glass rod

Answer

cotton string

Answer

plastic tubing

Question 11

A teacher mixes a white powder into a beaker of water. The powder cannot be seen in the water. The teacher then heats up the water until it evaporates and the powder can be seen again. Which of the property of the powder is the teacher demonstrating?

Accepted Answer

solubility

Answer

Density

Answer

Conductivity

Answer

Mass

Question 12

Objects that blow into a swimming pool or that are dropped into the pool by swimmers need to be removed. The objects include foam cups, keys, and coins. Which of the following explains a useful method for removing some of the objects?

Accepted Answer

The foam cups are less dense than water, so they can be removed from the surface with a pool cleaning net.

Answer

The keys and coins are less dense than water, so they can easily picked off the bottom of the pool by divers.

Answer

The foam cups have the same density as water, so they can be crumbled up for removal by the pool filter

Answer

The keys and coins have the same density as water, so they can be washed away when the pool is drained.

Question 13

Two wires carrying electricity can create a spark if they come too close together. This spark can start a fire. Wires carrying electricity are usually covered with plastic to keep them from starting a fire. Why does the plastic keep the electricity from starting the fire?

Accepted Answer

Plastic is a good insulator

Answer

Plastic can melt when heated

Answer

Plastic is softer that wire

Answer

Plastic conducts electricity

Question 14

A teacher dropped a bolt into a container of maple syrup and asked the students to remove it without touching the maple syrup. At first they used a strong magnet but the bolt would not move. They finally poured the maple syrup into another container to get the bolt out. Which of these best describes some of the bolt's properties?

Accepted Answer

The bolt is nonmagnetic and more dense than the maple syrup

Answer

The bolt is magnetic and has the same density as the syrup

Answer

The bolt is nonmagnetic and less dense than the syrup

Answer

The bolt is magnetic and less dense than the maple syrup

Question 15

A student is asked to design a sleeve for a cup that will insulate thermal energy and not feel hot to the touch when the cup is filled with liquid. The students has 4 materials to choose from. Which of these materials is least useful as an insulator?

Accepted Answer

aluminum

Answer

cardboard

Answer

rubber

Answer

plastic

Question 16

If I added 27 grams of salt to water and separated the solution with a hot plate, what amount of salt would be left behind?

Accepted Answer

27 grams

Answer

20 grams

Answer

0 grams

Answer

10 grams

Question 17

If you spilled nails in a sandbox, what separation tool/method could you use to clean out the sandbox so it would be safe for children to play in?

Accepted Answer

Magnet

Answer

Filter

Answer

Screen

Answer

Evaporation

Question 18

You have the following solids in a lab: salt, sand, lemonade powder, and pepper.  Which solids will dissolve in water to create a solution?

Accepted Answer

salt and lemonade powder

Answer

pepper, sand, and salt

Answer

salt, lemonade powder, and sand

Answer

pepper and sand

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