Worksheet for comparing mass and selecting appropriate units of measurement.

Let's solve the "Measuring Mass Worksheet" step by step and explain each answer.

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Part 1: Compare the objects and circle the one with the greater mass

We need to compare two objects in each pair and choose the one with greater mass (heavier).

#### a) Elephant vs. Mouse
- An elephant is much larger and heavier than a mouse.
✔ Circle: Elephant

#### b) Ladybug vs. Bird
- A bird is significantly heavier than a ladybug.
✔ Circle: Bird

#### c) Large LEGO brick vs. Small LEGO brick
- The red brick on the left is larger (longer and thicker), so it has more mass than the smaller red brick on the right.
✔ Circle: Larger LEGO brick (left)

#### d) Balloon vs. Football
- A football is solid and heavy, while a balloon is filled with air and very light.
✔ Circle: Football

#### e) Full bottle vs. Empty bottle
- Both bottles are the same size, but the orange bottle is full of liquid (likely juice), while the other is empty or nearly empty.
✔ Circle: Full bottle (orange one)

#### f) Jar with few candies vs. Jar with many candies
- The jar on the right has more candies, so it has greater mass.
✔ Circle: Jar with more candies (right)

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Part 3: Circle the unit of measurement (g / kg) for the object’s mass

Now, choose whether to use grams (g) or kilograms (kg) based on typical mass of the object.

> Note:
> - Grams (g): used for lighter objects (like an apple, a mouse).
> - Kilograms (kg): used for heavier objects (like a person, suitcase, elephant).

#### a) Elephant
- Elephants are very heavy — hundreds of kilograms.
✔ Circle: kg

#### b) Mouse
- A mouse is very small and light.
✔ Circle: g

#### c) Person (man)
- A human weighs about 50–100 kg.
✔ Circle: kg

#### d) Apple
- A single apple weighs around 100–200 grams.
✔ Circle: g

#### e) Cheese slice
- A slice of cheese is small and light.
✔ Circle: g

#### f) Suitcase
- A suitcase can weigh several kilograms (e.g., 10–20 kg).
✔ Circle: kg

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✔ Final Answers Summary:

#### Part 1 – Greater Mass:
a) Elephant
b) Bird
c) Larger LEGO brick
d) Football
e) Full bottle
f) Jar with more candies

#### Part 3 – Unit of Measurement:
a) kg
b) g
c) kg
d) g
e) g
f) kg

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Let me know if you'd like this formatted as a printable answer key!