Quiz about science

Question 1

Which of these describes a solid?

Justification: Solids have a fixed shape and do not flow or fill containers like liquids or gases.

Accepted Answer

b. It has a fixed shape.

Answer

a. It flows easily.

Answer

c. It fills the container.
d. It is invisible.

Question 2

Which of these is a liquid?

- Justification: Juice is a liquid because it can flow and take the shape of its container

Accepted Answer

<ul><li>c. Juice </li><li></li></ul>

Answer

Answer

Answer

<ul><li>d. Smoke</li></ul>

Question 3

What is inside a balloon filled with air?

- Justification: Air is a gas, which fills the balloon and takes its shape.

Accepted Answer

c. Gas (Correct)

Answer

<ul><li>a. Solid</li><li></li></ul>

Answer

<ul><li>b. Liquid</li><li></li></ul>

Answer

<ul><li>d. Plasma</li></ul>

Question 4

Which of these is NOT a state of matter?

- Justification: Temperature is a measure of heat, not a state of matter.

Accepted Answer

d. Temperature

Answer

<ul><li>a. Solid</li><li></li></ul>

Answer

<ul><li>b. Liquid</li><li></li></ul>

Answer

Question 5

Which particle has a negative charge?

- Justification: Electrons are negatively charged and orbit the nucleus.

Accepted Answer

c. Electron

Answer

<ul><li>a. Proton</li><li></li></ul>

Answer

<ul><li>b. Neutron</li><li></li></ul>

Answer

<ul><li></li><li>d. Nucleus</li></ul>

Question 6

Where are protons found in an atom?

- Justification: Protons are found in the nucleus at the center of the atom.

Accepted Answer

a. In the nucleus

Answer

b. Orbiting the nucleus

Answer

c. Outside the atom

Answer

d. In the electron cloud

Question 7

Which of these particles has no charge?

- Justification: Neutrons have no charge and are found in the nucleus with protons.

Accepted Answer

<ul><li>b. Neutron </li><li></li></ul>

Answer

<ul><li>a. Proton</li><li></li></ul>

Answer

c. Electron

Answer

<ul><li>d. Quark</li></ul>

Question 8

Which of these describes an atom?

- Justification: An atom is the smallest unit of matter and contains protons, neutrons, and electrons.

Accepted Answer

a. It is the smallest unit of matter.

Answer

b. It can be seen with the eyes.

Answer

c. It is always positive.

Answer

d. It is made of only electrons.

Question 9

Which of these is part of the nucleus of an atom?

- Justification: The nucleus is made of protons and neutrons.

Accepted Answer

<ul><li>b. Proton</li></ul>

Answer

a. Electron

Answer

Answer

<ul><li>d. Orbital</li></ul>

Question 10

What happens to water when it freezes?

- Justification: When water freezes, it becomes a solid called ice.

Accepted Answer

c. It turns into ice.

Answer

a. It turns into steam.

Answer

b. It becomes a gas.

Answer

d. It disappears

Question 11

What do we call water vapor turning back into liquid?

- Justification: Condensation is when water vapor cools and changes back into liquid.

Accepted Answer

b. Condensation

Answer

a. Evaporation

Answer

c. Sublimation

Answer

d. Freezing

Question 12

Which is a physical change?

- Justification: Melting chocolate is a physical change because it can be reversed by cooling.

Accepted Answer

c. Melting chocolate

Answer

a. Burning wood

Answer

b. Rusting iron

Answer

d. Baking a cake

Question 13

What is it called when a solid turns directly into a gas?

- Justification: Sublimation is when a solid changes directly to a gas, like dry ice turning into carbon dioxide gas.

Accepted Answer

c. Sublimation

Answer

<ul><li>a. Melting</li><li></li></ul>

Answer

b. Condensation

Answer

d. Evaporation

Question 14

What is the basic unit of mass in the metric system?

- Justification: The gram is the basic unit of mass in the metric system.

Accepted Answer

Answer

<ul><li></li><li>b. Meter</li><li></li></ul>

Answer

<ul><li>c. Liter</li><li></li></ul>

Answer

<ul><li>d. Newton</li></ul>

Question 15

How many meters are in a kilometer?

- Justification: There are 1,000 meters in a kilometer.

Accepted Answer

Answer

Answer

Answer

Question 16

What is measured in liters?

- Justification: Liters measure the volume of liquids and gases.

Accepted Answer

<ul><li>c. Volume </li></ul>

Answer

a. Distance

Answer

Answer

Question 17

Which of these tools is used to measure temperature?

- Justification: A thermometer is used to measure temperature in degrees Celsius or Fahrenheit.

Accepted Answer

c. Thermometer

Answer

<ul><li>a. Ruler</li><li></li></ul>

Answer

b. Stopwatch

Answer

d. Balance scale

Question 18

18. Which of these objects is the most dense?

- Justification: A rock is denser because it has more mass packed into its volume compared to the other options.

Accepted Answer

Answer

a. A feather

Answer

b. A sponge

Answer

d. A balloon

Question 19

What does volume measure?

- Justification: Volume measures the amount of space an object or substance occupies.

Accepted Answer

c. The amount of space an object takes up

Answer

a. The weight of an object

Answer

b. The temperature of a liquid

Answer

d. The speed of an object

Question 20

Which of these describes evaporation?

- Justification: Evaporation is when water changes from a liquid to a gas, like when water boils and turns into steam.

Accepted Answer

a. Water boiling and turning into steam

Answer

b. Water freezing into ice

Answer

c. Ice melting into water

Answer

d. Steam turning into water droplets

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