Quiz about Gr4 Science Lesson 2: Materials that Float and Sink

Question 1

Which the following materials have the ability to sink in the water?

Accepted Answer

metal spoon

Answer

Styrofoam

Answer

plastic cup

Answer

rubber ball

Question 2

Why do boats float in water?

Accepted Answer

The water current pushes the boat upward.

Answer

Boats are made of wood that make them float.

Answer

The sea breeze makes the boat float in water.

Answer

Man uses paddle to make the boat float in water.

Question 3

_______ means the action of an object when it becomes submerged in a liquid or fall to the bottom of a liquid.

Accepted Answer

sink

Answer

float

Answer

absorb

Answer

repel

Question 4

_______ means the action of an object when it sits on the surface of a liquid or stay on top.

Accepted Answer

float

Answer

sink

Answer

absorb

Answer

repel

Question 5

______ is the ability of a material to float in liquid.

Accepted Answer

Buoyancy

Answer

Porosity

Answer

Viscosity

Answer

Malleability

Question 6

Which the following materials have the ability to float on the water?

Accepted Answer

pencil

Answer

large stone

Answer

bowling ball

Answer

10-peso coin

Question 7

Which of the following affects a material's ability to float? Check ALL that applies.

Accepted Answer

shape of the material

Accepted Answer

type of liquid

Accepted Answer

density of the material

Answer

color of the material

Question 8

________ is the degree of compactness of an object. It is how closely molecules are crowded together in a space.

Accepted Answer

density

Answer

viscosity

Answer

porosity

Answer

buoyancy

Question 9

Objects with tightly packed molecules will sink if it is more dense than the liquid it is immersed in.

Accepted Answer

True

Answer

False

Question 10

Objects with loosely packed molecules will sink if it is less dense than the liquid it is placed in.

Accepted Answer

False

Answer

True

Question 11

Materials with a density less than that of a liquid will float.

Accepted Answer

True

Answer

False

Question 12

Materials with a greater density than the liquid will float.

Accepted Answer

False

Answer

True

Question 13

The shape of an object does NOT affect its ability to float.

Accepted Answer

False

Answer

True

Question 14

The larger the surface area of an object, the stronger the upthrust.

Accepted Answer

True

Answer

False

Question 15

Density affects the ability of an object to sink or float.

Accepted Answer

True

Answer

False

Question 16

All things will submerged in any liquid.

Accepted Answer

False

Answer

True

Question 17

Some things sink very slow.

Accepted Answer

True

Answer

False

Question 18

Styrofoam materials float on liquid no matter what their shape is.

Accepted Answer

True

Answer

False

Question 19

Check ALL the materials that float in a body of water.

Accepted Answer

raft

Accepted Answer

plastic bottles with caps

Accepted Answer

leaves

Answer

hollow blocks

Answer

anchor

Question 20

Check ALL the materials that sink in a body of water.

Accepted Answer

stone

Accepted Answer

hammer

Answer

styropore

Answer

plastic bag

Answer

paper boat