What causes the tides
Grade 6 Science Worksheet - Challenge Me
Circle the best answer.
High tides at Esme's dock on Monday are at 3:10 a.m. and 3:35 p.m. Tide times come about 50 minutes later each day. When are the two high tides on Wednesday?
- 4:00 a.m. and 4:25 p.m.
- 4:50 a.m. and 5:15 p.m.
- 3:10 a.m. and 3:35 p.m.
- 1:30 a.m. and 1:55 p.m.
High tides at Jun's harbor on Wednesday are at 6:40 a.m. and 7:05 p.m. Tide times come about 50 minutes later each day. When are the two high tides on Friday?
- 5:00 a.m. and 5:25 p.m.
- 8:20 a.m. and 8:45 p.m.
- 6:40 a.m. and 7:05 p.m.
- 7:30 a.m. and 7:55 p.m.
High tides at Kira's beach on Friday are at 1:20 a.m. and 1:45 p.m. Tide times come about 50 minutes later each day. When are the two high tides on Sunday?
- 2:10 a.m. and 2:35 p.m.
- 11:40 p.m. and 12:05 p.m.
- 1:20 a.m. and 1:45 p.m.
- 3:00 a.m. and 3:25 p.m.
High tides at Luz's pier on Tuesday are at 5:05 a.m. and 5:30 p.m. Tide times come about 50 minutes later each day. When are the two high tides on Friday?
- 5:55 a.m. and 6:20 p.m.
- 5:05 a.m. and 5:30 p.m.
- 7:35 a.m. and 8:00 p.m.
- 2:35 a.m. and 3:00 p.m.
Noah wants to test whether high tides come about 50 minutes later each day. Which plan is best?
- Write down the height of each high tide at one pier for a week, but not the times.
- Write down the times of both high tides at one pier on a single day this week.
- Write down the time of one high tide at the same pier each day for a week.
- Write down the time of a high tide at a different pier each day for a week.
Pia wants to test whether a storm changes the time of high tide at the boat ramp. Which plan is best?
- Count the waves at the ramp on calm days and on stormy days, writing down each count.
- Compare the tide table's time with the real time at the ramp on a single stormy day.
- Compare the tide table's times with real times at a different harbor each stormy day.
- Compare table times with real times at the ramp on calm days and on stormy days.
Ren's club wants to test whether tides are bigger near new and full moons. Which plan is best?
- Count the boats in the harbor near each new and full moon for two months.
- Measure the range at a different harbor each time, near new and full moons, not the quarters.
- Measure the range at one harbor for two months, near new, full and quarter moons.
- Measure the range on the day of one full moon and treat that as the answer.
Read this first
Table (example data)
Thu, high at 5:20 a.m., 2.4 m, low 0.3 m. Fri, high at 6:10 a.m., 2.3 m, low 0.4 m. Sat, high at 7:00 a.m., 2.2 m, low 0.5 m.
Zee studies a three-day tide table at a bay. Which claim does the table support?
- The range stayed the same, because the high tide was about 2.3 m on each day.
- The range will keep shrinking until it reaches zero within about a week.
- At bays around the Earth, the range shrinks for three days in a row, then grows again.
- High tide came about 50 minutes later each day, and the range shrank a little.
Table (example data)
Mon, high at 8:00 a.m., 1.6 m, low 0.6 m. Tue, high at 8:50 a.m., 1.8 m, low 0.5 m. Wed, high at 9:40 a.m., 2.1 m, low 0.5 m.
Ari studies a three-day tide table at a dock. Which claim does the table support?
- The range will be 3.0 m next Wednesday, because it grew on each of the three days.
- The range stayed the same, because the low tide was 0.5 m on two of the days.
- On docks around the world, the range grows for three days before shrinking.
- High tide came about 50 minutes later each day, and the range grew daily.
Table (example data)
Sun, high at 9:30 a.m., 2.5 m, low 0.5 m. Mon, high at 10:20 a.m., 2.6 m, low 0.4 m. Tue, high at 11:10 a.m., 2.7 m, low 0.3 m.
Bo studies a three-day tide table at a harbor. Which claim does the table support?
- The range stayed the same, because the high tide was about 2.6 m on each day.
- Harbors around the world have a high tide 50 minutes later each day, from now on.
- High tide came about 50 minutes later each day, and the range grew daily.
- The high tide will come at noon on Thursday, and the range will be 3.0 m.
