The __________ of the circle measured exactly 10 centimeters.

• reflect

• gravity

• diameter

• gaze

At the museum, the kids stood in front of the dinosaur skeleton and __________ at it for several minutes.

• gazed

• reflected

• measured

• dropped

After hearing the sad news, Maria sat quietly to __________ on what had happened.

• gravity

• diameter

• reflect

• gaze

An apple fell from the tree because of __________.

• evaporation

• gravity

• reflection

• diameter

• friction

Before drawing a perfect circle, it’s important to know its __________.

• diameter

• radius

• area

• perimeter

The serious __________ of the situation made everyone stop laughing.

• diameter

• gaze

• gravity

• reflection

The lake __________ the image of the mountains on its calm surface.

• gazed

• reflected

• measured

• pulled

The scientist used a telescope to study stars and planets because she loved __________.

• crater

• astronomy

The ball bounced into a huge __________ near the top of the volcano.

• crater

• valley

• cave

• pit

He stared up at the night sky, his __________ fixed on the bright full moon.

• gravity

• crater

• gaze

• degree