Science FAST Review :)

Lydia has been observing an ant bed in her backyard. Which of her observations below can she scientifically test?

• Red ants are smarter than black ants.

• Red ants are friendlier than black ants.

• Black ants make higher hills than red ants.

• Black ant bites are more painful than those of red ants.

After making some observations for her science fair project, Lydia believes black ant beds are bigger than red ant beds because the black ants work a larger area of land. What should she do next?

• State her hypothesis in the form of a question.

• Measure the distance around several black ant beds.

• Get friends to help her observe and watch the black ants.

• Determine how best to measure the distance across both red and black ant beds to gather evidence.

What can be concluded from this experiment?

• Corn plants grow tall in clay.

• Corn seeds do not grow in sand.

• Corn plants grow better in clay than in sand.

• Corn plants grow better in topsoil than in clay or sand.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What variables are being tested (independent variable) and being measured (dependent variable) in this experiment?

• Size of the pot and the type of soil used.

• Type of seed and the height of the plant.

• Size of the pot and the type of seed used.

• Type of soil used and the height of the plant.

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

Ellie conducts an investigation to determine if size or weight affect how fast objects fall. Her investigation includes repeatedly dropping a basketball and a golf ball at the same time. After many trials, she observed that both balls land at the exact same time. Why would Ellie’s investigation be valid?

• It includes her opinion.

• It is based on evidence.

• It uses objects that move.

• It proves her predictions are correct.

The fifth-grade students were fundraising to go on a field trip to the Kennedy Space Center. They graphed their savings to know when they meet their goal. Which of the following statements is an interpretation of the graph?

• Fifth grade had $60 in their account in January.

• The amount of money increased from January to July.

• The same amount of money was in the account between July and October.

• Fifth grade had more fundraisers to earn more money between April and July.

Students observe a pot of water that looks like it is boiling, however, the temperature of the water is a surprising 33 degrees Fahrenheit which is almost freezing. The teacher explains that there is a piece of dry ice at the bottom of the pot making the water bubble and fog. Which of the following is an example of an opinion?

• The pot is black.

• The water is cold.

• The water is 33 degrees Fahrenheit.

• The volume of the pot is 532 milliliters.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Austin is studying states of matter by heating water in a pan. Which statement from his notebook is an observation?

• There is air in the bubbles.

• The bottom of the pan must be very hot.

• Tiny bubbles form on the bottom of the pan.

• It is hard to estimate the size of the bubbles.

In order for his project to be valid, which of the following must happen?

• The project must include his beliefs.

• The results must be based on evidence.

• The project must prove his predictions correct.

• The results must be based on personal opinion.

Tags

NGSS.HS-ESS3-1

NGSS.HS-PS1-2

NGSS.HS-PS3-4

Based on his observations, which of these is evidence that supports his prediction that objects float higher in salt water than in fresh water?