Quiz about 4G Science 1st 9wks Review

Question 1

TRUE or FALSE:

If two different types of berries are placed on a balance, the side with more mass will tip downward.

Accepted Answer

FALSE

Answer

TRUE

Question 2

Observe the photo. This photo shows different school supplies on a desk. Which item on the desk is magnetic?

Accepted Answer

paper clip

Answer

paper

Answer

colored pencil

Answer

eraser

Question 3

Which items have the physical property of being magnetic? Select the two that apply.

Accepted Answer

iron nail

Accepted Answer

steel button

Answer

glass bead

Answer

copper penny

Question 4

This is a photo of a sieve. A sieve is a tool with small holes. Which mixture would the sieve be

most useful for separating?

Accepted Answer

pebbles and water

Answer

metal marbles and glass marbles

Answer

salt and water

Answer

pens and pencils

Question 5

The thermometer reading is _______ degrees Celsius.

Accepted Answer

78 degrees

Answer

70 degrees

Answer

60 degrees

Answer

82 degrees

Question 6

Observe the illustration. This illustration shows a rubber ball, a foam block, oil, and a rock in a bowl of water.

In the illustration, which object is less dense than water?

Accepted Answer

foam block

Accepted Answer

rubber ball

Answer

rock

Answer

oil

Question 7

Observe the animals. The mass of a cat, giraffe, badger, eagle, and elephant are shown. Which animal has the greatest mass?

Accepted Answer

giraffe

Answer

cat

Answer

badger

Answer

eagle

Answer

elephant

Question 8

Observe the animals. The mass of a cat, giraffe, badger, eagle, and elephant are shown. Which animal has the least amount of mass?

Accepted Answer

cat

Answer

giraffe

Answer

badger

Answer

eagle

Answer

elephant

Question 9

This photo shows a mixture. Which two materials is this mixture made of?

Accepted Answer

sand

Accepted Answer

iron filings

Answer

glass beads

Answer

salt

Question 10

Which photo shows a mixture that is also a solution?

Accepted Answer

Question 11

Both salt water and fruit salad are examples of mixtures. How are the two mixtures alike, and

how are they different?

Accepted Answer

Salt water and fruit salad are both mixtures, but salt water is a solution once the salt dissolves into the water.

Answer

Salt water and fruit salad are both examples of solutions.

Answer

Salt water and fruit salad not a mixture or solution.

Answer

Salt water and fruit salad are both elements, but salt water is a compound while fruit salad is a mixture.

Question 12

TRUE or FALSE

A bowl of mixed fruits is a solution?

Accepted Answer

FALSE

Answer

TRUE

Question 13

When a Koolaid packet is mixed into water, what occurs?

Accepted Answer

The sugar in the Koolaid packet dissolves.

Answer

The sugar in the Koolaid packet turns into a solid.

Answer

The sugar in the Koolaid packet floats.

Answer

The water evaporates.

Question 14

The mixture is made from 80 grams of cereal and an unknown amount of milk. The mass of the

cereal and milk together is 170 grams. What is the mass of the milk?

Accepted Answer

90 grams

Answer

60 grams

Answer

140 grams

Answer

110 grams

Question 15

The mass of a solution made by dissolving 45 grams of salt in 200 grams of water is _______ grams total.

Accepted Answer

245 grams

Answer

155 grams

Answer

275 grams

Answer

300 grams

Question 16

Will shaking a sealed jar of sweet cream change its weight?

Accepted Answer

No, shaking the jar doesn't change the matter that is inside of it.

Answer

Yes, shaking it will make all the matter inside the jar disappear.

Answer

Yes, shaking the jar will change the matter that is inside of it.

Answer

No, you cannot shake a jar.

Question 17

What do all sound waves have in common? Select all correct answers.

Accepted Answer

All sound waves are formed by vibrations.

Accepted Answer

All sound waves carry energy from place to place.

Answer

All sound waves travel only through air and not through other matter.

Answer

All sound waves carry matter from place to place.

Question 18

Observe the illustration.

This is a game of billiards. Describe the energy in this group of billiard balls. How will the energy transfer?

Accepted Answer

When the white ball collides with

the other balls, it will transfer some or all of its energy to them.

Answer

The energy will transfer through gravitational forces between the billiard balls.

Answer

The energy will transfer through sound waves produced by the billiard balls.

Answer

The energy will transfer through magnetic fields between the billiard balls.

Question 19

What makes the floaty bob up and down in the lake?

Accepted Answer

Transfer of energy by waves in water

Answer

The floaty is too heavy for the water

Answer

The floaty is leaking air

Answer

Fish swimming

Question 20

Which type of energy is represented in the picture?

Accepted Answer

Energy of Motion

Answer

Energy of Sound

Answer

Energy of Water

Answer

No energy is present

Question 21

This photo shows a child playing the trumpet. How is energy changed or transferred when a trumpet is played?

Accepted Answer

The trumpet player uses energy to blow air into the trumpet. The air vibrates in the

trumpet. It forms sound waves that transfer the energy into the surrounding air in all

directions.

Answer

The energy is transferred to the moon.

Answer

The trumpet absorbs energy from the surroundings.

Answer

The player's energy is converted into light energy.

Question 22

This is a metal pot with a wood handle. How are conductors and insulators used in this cooking pot?

Accepted Answer

The metal part of the pot is a conductor of heat. The wood handle is an insulator.

Answer

The metal part of the pot is an insulator of heat. The wood handle is also an insulator.

Answer

The metal part of the pot is a conductor of heat. The wood handle is a conductor.

Answer

There is no such thing as insulators and conductors.

Question 23

Observe the photo.

A plastic light switch is used to turn lights on and off. Is the plastic light switch a conductor or insulator?

Accepted Answer

Insulator

Answer

Conductor

Answer

Both

Answer

Neither

Question 24

What causes the metal on the slide to feel hot?

Accepted Answer

metals are good conductors of heat

Answer

metals are not conductors of heat

Answer

metals do not get hot

Answer

metals stay cool at all times

Question 25

Imagine you have two identical mugs filled with hot chocolate. You wrap one mug in bubble wrap and the other in a thick layer of Styrofoam. Which mug of hot chocolate will stay warmer for a longer time?

Accepted Answer

The mug with Styrofoam.

Answer

The mug with bubble wrap.

Answer

They both will stay warm for the same amount of time.

Answer

Nothing will happen either way.

Question 26

Each drawing shows a circuit with loose ends of wire. When the loose ends are brought together

and the switch is closed, which circuit will have a closed path with a switch and light the light

bulb?

Accepted Answer

Question 27

How is electrical energy useful in powering an electric oven?

Accepted Answer

Electrical energy is changed to thermal energy as it moves through the circuit.

Answer

Electrical energy is used to power the display screen of the electric oven.

Answer

Electrical energy is stored in batteries within the electric oven.

Answer

Electrical energy is converted into mechanical energy to rotate the oven's turntable.

Question 28

How can you demonstrate that a switch is useful in a circuit?

Accepted Answer

When open, none of the parts work. When closed electrical energy can flow through the circuit.

Answer

Explain the history of switches in circuits.

Answer

Demonstrate how the switch can cook food in the circuit.

Answer

Show how the switch can change the color of the circuit.

Question 29

At school, imagine you want to turn on a light in the classroom, but the switch has a broken wire inside. What would happen when you try to flip the switch?

Accepted Answer

The light would stay off because it has no way for electricity to continue to flow through it.

Answer

The light would flicker a little.

Answer

The light would stay on all the time, even when you flip the switch.

Answer

The light would turn on and off normally.

Question 30

When you turn on a flashlight by closing the switch, what happens inside besides the light turning on?

Accepted Answer

The metal parts inside get warmer.

Answer

Nothing else changes.

Answer

The batteries get bigger.

Answer

It falls apart.

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