Science Daily 12.18.19

Which would make the best model to show the structure of the inside of the Earth?

• a basketball

• a hard-boiled egg

• a rubber-band ball

• a solid rock

How are all fruits the same?

• The all produce pollen

• They all produce pods

• The all produce spores

• They all produce seeds

What do you call a type of material that does not allow electricity or heat to flow through it easily?

• conductor

• insulator

• fire retardant

• elastic

Rodney wants to see which plant will grow the tallest. He finds three plants of the same size. One plant he gives water, one gets salt water, and the other gets sugar water. He places them all in the same windowsill. He thinks the plant with sugar water will grow tallest. How could Rodney record his observations to show how tall the plants grow?

• He can weigh the plants each day

• He can draw pictures of where the sun is each day

• He can make a table showing the height of the plants each day

• He can make a table showing how much water the plants get each day

A student heated water in a beaker to see how quickly water heats up and only recorded the following data. What should the student do about the temperature reading at 3 minutes?

• Ignore it and use the data without the reading

• Change the results to match what the student expects.

• Repeat the investigation and see if the results stay the same

• Replace the reading at three minutes with the average of the seven days.