Science 4 and 5

Fill in the Blanks

1. A satellite is a body which orbits a

   body in space.

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2. breaks food down into very tiny particles

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Brass is a

of copper and zinc.

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3. Iron is one of the

   materials.

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4.When we measure the strength of magnet, the objects that are attracted to the magnet is

.

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5. If we want to

   drag, we must prepare to have a streamlined shape.

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7. We should eat least of

   .

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8. Many vertebrates have a

   digestive system.

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9. The food that contains

   protects from various diseases.

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10. helps to make our teeth and bones strong.

Multiple Choice

When the strength of forces is equal, the size of arrows we need to draw is different.

• True

• False

Multiple Choice

The arrow for thrust points backward.

• False

• True

Multiple Choice

When we move the object on smooth surface, we use less applied force.

• True

• False

Multiple Choice

When satellite travels at 27,200 km/h, it will go into orbit.

• True

• False

Multiple Choice

The carbohydrates found in white bread and white rice are healthy.

• True

• False