Show:
Nutrition
Digestive System
separation of mixtures
Electricity
shadows and eclipses
100

We get ................... and ...................... from fruits and vegetables.

vitamins and minerals

100

we have a liquid in our mouth called ................. It helps chew the food.

Saliva

100

Mixtures are divided into ............................ and .................................

homogeneous and heterogeneous

100

Atoms are made up of 3 parts: ..................., ...................., and ....................

protons, neutrons, and electrons

100

Shadows are either ................... or .................... ones.

crispy or blurry

200

.................... help our bodies grow and repair fast.

Proteins

200

The  ........................ is a tube that connects the mouth to the stomach.

esophagus

200

salt-water is a ........................... mixture, while fruit salad is a ......................... mixture.

homogeneous, heterogeneous 

200

................... is produced by non-metal objects when electrons move from one object to another.

(Hint: when you rub your shoes on a carpet)

Static electricity

200

what's the difference between the umbra and penumbra of a shadow?

The umbra is the darker inner part of a shadow (no light can reach)

The penumbra is the lighter outer part of a shadow (some light can reach)

300

rice, bread, and yam are good sources of ......................

carbohydrates

300

The stomach produces ....................... to break down the food, and ................. to kill bacteria.

enzymes, acid


300

....................... is a process that  separates salt from water

Stomach 

300

.......................... allow electricity to travel through them, while ..................... do not.

conductors, insulators

300
A ....................... happens when the Moon blocks the sunlight, while A .......................... happens the Moon moves into the Earth's shadow.

Solar eclipse, lunar eclipse 

400

................. has no calories and helps the blood transport oxygen and nutrients to all body cells

Water

400

In the ............................., the food particles become nutrients and enters our blood.

small intestine

400

Name 6 common methods used to separate heterogeneous mixtures.

Picking out, sifting, using magnets, pouring out, filtration, and sedimentation

400

if one electrical appliance breaks down in a ......................, the others will not work.

Series circuit

400

what's the difference between total and partial solar eclipses? 

If we are in the umbra,

this is called a total solar eclipse.

If we are in the penumbra,

this is called a partial solar eclipse.

500
.................... give us energy and help our bodies absorb vitamins.

Fats

500

If we don't take care of our diet, it may cause digestive diseases such as ........................ and ......................

Diarrhea, constipation, gastritis, cholera, and diabetes

500

How do we separate sand from salt ?

1- Add water then mix

2- sedimentation

3- pour out the water in another beaker.

4- evaporation

500

Most electrical appliances in homes are connected in ............................

parallel circuits

500

How does a lunar eclipse look like from the moon?

The Earth is blocking sunlight (solar eclipse)