SCI3 CHANGES IN MATTER

SCI3 CHANGES IN MATTER

• Moving molecules produce heat.

• A change in state occurs when there is an increase or decrease in temperature.

• When temperature of matter increases, its molecules move faster, and the spaces between the molecules become bigger.

• When the temperature of matter decreases, its molecules move slower. The spaces between molecules become smaller, and the molecules become closer to each other.

Melting

• occurs when matter changes from solid to liquid.

• ice to water

Melting

• Solid steel, when heated

  at very high temperatures, will turn into

  molten metal. 

Evaporation

• change in matter from liquid form to gas form.

• Water Vapor - water in the gas state

• The process of evaporation occurs all around us. The heat from the

  sun causes the evaporation of exposed water from the surface of Earth

  from wet spots on the ground, to the oceans, lakes, and other water forms

Sublimation

• change in matter directly from solid form to gas form.

• Dry ice is a solid carbon dioxide. It has a temperature that is colder than regular ice. It does not melt but instead undergoes sublimation

• 
  

Condensation

• change in matter from gas form to liquid form.

Condensation

• When this warm air comes into contact with cooler dust particles in the atmosphere, water vapor condenses and forms clouds. 

Condensation

• Dew appears in the morning because the

  warmer air around the plants also cools down, and water vapor on the leaves

  cools condenses into liquid water.

  on the leaves condenses into liquid water

Freezing

• change in matter from liquid form to solid form.

• opposite of melting

Multiple Choice

Which is MOST likely to happen to a solid substance that is heated?

• It will evaporate.
• It will boil
• It will melt.
• It will harden.

Multiple Choice

When ice melts, it becomes a 

• solid
• liquid
• gas
• plasma

Multiple Choice

Snow turns to liquid water when it

• freezes
• evaporates
• condenses
• melts.

Multiple Choice

How can you make liquid water become a solid?

• Add a lot of salt to the water.
• Put the water in a very cold place
• Shake the water container very fast.
• Heat the water on the stove.

Multiple Choice

An ice cube is placed in a pan. The pan is placed over an open flame. Which change will MOST likely happen over time?

• The ice changes to a gas then a liquid
• The ice changes to a gas and then back to a solid
• The ice changes to a liquid then to a gas.
• The ice changes to a liquid and back to a solid. 

Multiple Choice

A large piece of ice is placed on the sidewalk on a warm day. What will happen to the ice? 

• It will melt to form liquid water
• It will melt to form water vapor
• It will not change at all.
• It will freeze to form liquid water. 

Multiple Choice

When matter changes state, does the weight change?

• Yes, it gets lighter

• Yes, it gets heavier

• No, it does not change!

Multiple Choice

If you add heat energy to a solid, what will happen to it?

• It will melt

• It will freeze

• It will disappear

Multiple Choice

When matter goes from liquid to a gas, that's called...

• Freezing

• Melting

• Evaporation

• Condensation

Multiple Choice

When matter goes from gas to a liquid, that's called...

• Freezing

• Melting

• Evaporation

• Condensation

Multiple Choice

When matter goes from liquid to solid, that's called...

• Freezing

• Melting

• Evaporation

• Condensation

Multiple Choice

When matter goes from liquid to solid, that's called...

• Freezing

• Melting

• Evaporation

• Condensation

COMMON HOUSEHOLD MATERIALS

For Cleaning the House

• Detergents, in powder or liquid form

• Glass cleaner

• Tile Cleaner

• Wood Cleaner

For Cleaning the Body

• shampoo

• soap

• toothpaste

For Improving One's Look

• lotion

• body oil

• cream

• perfume

For Cooking

• LPG

• cooking oil

• condiments

For Killing Insects or Pests

• mosquito repellent

• insect sprays

Multiple Select

Choose all that applies.

Which of the following are materials that are used for cooking?

• LPG

• Shampoo

• Cooking Oil

• ketchup

• Salt

Multiple Select

Choose all that applies.

Which of the following are materials that are used for cleaning the body?

• lotion

• Shampoo

• toothpaste

• cooking oil

• soad

Multiple Select

Choose all that applies.

Which of the following are materials that are used for killing insects and pest?

• mosquito spray

• hair spray

• toothpaste

• cooking oil

• insect spray

Multiple Select

Choose all that applies.

Which of the following are materials that are used for cleaning the house?

• detergents

• wood cleaner

• glass cleaner

• tile cleaner

• Conditioner

Multiple Select

Choose all that applies.

Which of the following are materials that are used for improving one's look?

• hair spray

• lotion

• shampoo

• perfume

• soad

SAFE HANDLING OF COMMON MATERIALS

Store the products according to their use.

a. laundry products

These should be kept together in the laundry area or in a cabinet, away from food items and out of reach of small children.

b. beauty products

Keep these items in the dresser area or a similar place.

c. household cleaning agents

These should be kept in a closed cabinet and out of children's reach.

d. lawn and garden products

These materials contain toxic chemicals and should be kept in a proper storage area in the garage or in a locked storage area.

e. automotive products

These materials should be kept in the garage area. Be careful when storing and using them. Some are flammable or can easily catch on fire.

f. home maintenance products

These products may be kept in the garage or in a locked storage area.

Read and recognize product labels.

Read and recognize product labels. Some

household products contain harmful chemicals and therefore need proper handling, storage, and disposal. Labels give you important information on how to use the Reading product labels is products. Follow the directions carefully to important for safety avoid any accidents.

Products with this symbol can easily ignite, and cause fire.

Products with this symbol contain poison or toxic chemicals.

Products with this symbol can easily blow up and release poisonous fumes into the air.

Products with this symbol contains acids that can destroy and damage other materials they come in contact with, including the skin.

Other Safety Measures

• Store the products in their original containers. 

• Keep cleaners chemicals out of children's reach. These products should be stored in locked cabinets because they and other

  household can be hazardous. 

Other Safety Measures

• Flammable products such as automotive fluids, LPG, gasoline, and kerosene should not be stored inside the house. 

• Household products should not be kept near places where you store your food. 

Other Safety Measures

• Do not just throw toxic materials into trash bins or burn them. 

• Keep contact numbers of your nearest neighbor, your doctor, the fire and police stations near you to call in case of emergency.