3rd Grade - Science - 1st Semester

3rd Grade - Science

Welcome!

Contents (1st period)

WHY DO I EAT?

-Lesson 1. What should I eat? (page 2)

Food groups and nutrients in food.

-Lesson 2. What happens to the food I eat? (page 10)

Alimentary canal and Digestive system.

HOW DO HUMANS AFFECT THE ENVIRONMENT?

-Lesson 1. Where does waste go? (page 52)

Types of pollution.

-Lesson 2. How can we reduce waste? (page 60)

Organic and inorganic waste, 3Rs.

Contents (2nd period)

WHAT ARE THE CHARACTERISTICS OF THE THINGS AROUND ME?

-Lesson 1. What are the things around me made of? (page 70)

Properties of matter, states of matter

-Lesson 2. Why does matter change? (page 78)

Temperature, changes in state of matter

HOW DO MATERIALS COMBINE?

-Lesson 1. What are mixtures? (page 86)

Mixtures and proportions

- Lesson 2. How do materials combine with water? (page 94)

Kinds of solutions, concentrations

Multiple Choice

How many food groups are there?

• 2 food groups

• 3 food groups

• 4 food groups

• 5 food groups

Multiple Choice

In which group do you classify the next food?

Tomatoes

• Fruits and vegetables

• Legumes and animal products

• Grains and tubers

Multiple Choice

In which group do you classify the next food?

Fish

• Fruits and vegetables

• Legumes and animal products

• Grains and tubers

Multiple Choice

In which group do you classify the next food?

Milk

• Fruits and vegetables

• Legumes and animal products

• Grains and tubers

Multiple Choice

In which group do you classify the next food?

Potatoes

• Fruits and vegetables

• Legumes and animal products

• Grains and tubers

Multiple Choice

In which group do you classify the next food?

Beans

• Fruits and vegetables

• Legumes and animal products

• Grains and tubers

Multiple Choice

A balanced diet includes...

• food from the 3 different groups

• a lot of sugar

• vitamins

Multiple Select

Food provides our body with different nutrients such as...

• vitamins

• minerals

• fats

• carbohydrates

• calcium

Multiple Choice

PATIENT: Hello, Doctor. I want to help my muscles function.

DOCTOR: You should take some ...

• b vitamins

• carbohydrates

• potassium

• protein

Multiple Choice

PATIENT: Hello, Doctor. I want to help my vision

DOCTOR: You should take some ...

• b vitamins

• Iron

• potassium

• Vitamin C

Multiple Choice

PATIENT: Hello, Doctor. I want to have strong bones.

DOCTOR: You should take some ...

• calcium

• Iron

• Carbohydrates

• Vitamin C

Multiple Choice

The esophagus is a tube that...

• absorbs nutrients from food

• breaks food into very small pieces

• absorbs water and makes feces

• connects the mouth and the stomach

Multiple Choice

The large intestine...

• absorbs nutrients from food

• breaks food into very small pieces

• absorbs water and makes feces

• connects the mouth and the stomach

Multiple Choice

The small intestine...

• absorbs nutrients from food

• breaks food into very small pieces

• absorbs water and makes feces

• connects the mouth and the stomach

Multiple Select

Select the 3 strategies we use to take care of the environment.

• Reducing

• Repeating

• Respecting

• Reusing

• Recycling

Multiple Choice

How do you reuse?

• Classifying waste

• Giving the empty plastic bottles new usage

• Using less paper

Multiple Choice

How do you recyle?

• I use paper bags

• I count 20 when I am washing my hands

• I cannot recycle because it is an industrial process, but I can help classifying waste in the proper can.

Multiple Choice

When you use your car everyday, it causes...

• air pollution

• water pollution

• soil pollution

Multiple Select

Select the 3 states of matter:

• solid

• gas

• solute

• liquid

• concentration

Multiple Choice

orange juice is...

• a solid

• a liquid

• a gas

Multiple Choice

a teddy bear is...

• a solid

• a liquid

• a gas

Multiple Choice

steam is...

• a solid

• a liquid

• a gas

Multiple Choice

When the temperature changes a solid into a liquid, it is called...

• evaporate

• condense

• melt

• boil

• freeze

Multiple Choice

When the temperature changes a gas into a liquid, it is called...

• evaporate

• condense

• melt

• boil

• freeze

Multiple Choice

What is a mixture?

• a substance

• a combination of substances

• when a solvent dissolves

Multiple Choice

Look at the next combination and decide if it is a mixture or a solution.

Milk + Chocolisto

• Mixture

• Solution

Multiple Choice

Look at the next combination and decide if it is a mixture or a solution.

a salad with fruit and ice-cream

• Mixture

• Solution

Multiple Choice

Look at the next combination and decide if it is a mixture or a solution.

the water we find in the ocean

• Mixture

• Solution

Multiple Choice

An insoluble substance is...

• a substance that will dissolve

• a substances that will NOT dissolve